Creamy Mushroom & Wild Rice Soup

I have been chasing a good dairy-free creamy mushroom soup for longer than I’d like to admit. The challenge is that what makes traditional mushroom soup so good – that thick, velvety, rich broth – usually comes from heavy cream and butter. The dairy-free versions I tried for years either tasted watered down or had a coconut flavor that competed with the mushrooms rather than supporting them. Then I figured out the coconut milk roux technique and everything changed.

This creamy mushroom and wild rice soup achieves the texture of a restaurant-quality cream soup without a drop of dairy. The secret is making a proper roux with olive oil and flour first, then slowly whisking in the full-fat coconut milk to create a thick, sauce-like component that gets stirred into the broth at the end. The coconut flavor mellows significantly when emulsified with olive oil and flour and cooked into an earthy mushroom broth – you taste richness and creaminess rather than coconut. It’s the technique that makes this recipe work as well as it does.

The wild rice is the other thing that sets this apart from basic mushroom soup. It adds a nutty, slightly chewy quality that makes the soup feel genuinely hearty and substantial – more like a main course than a starter. It also holds up beautifully during the 30-minute simmer and in the fridge for several days, staying properly textured rather than dissolving or becoming mushy the way white rice does in soup.

This is a cold-weather soup that tastes even better the day after it’s made, when the wild rice has absorbed some of the broth and the flavors have had time to meld completely. For more warming, substantial vegan soups perfect for meal prep, my Detox Turmeric Lentil Soup is another one-pot powerhouse that checks every similar box.

Why You Will Like This Creamy Mushroom and Wild Rice Soup

• The coconut milk roux creates real cream-soup texture without dairy – This is the technique that makes this soup different from every other dairy-free mushroom soup. A proper roux whisked with full-fat coconut milk before being stirred into the broth produces a velvety, rich consistency that is indistinguishable from a cream-based soup in texture.
• Wild rice makes it genuinely hearty – The nutty, slightly chewy wild rice turns this from a light soup into something substantial enough to be a complete meal. It holds its texture perfectly over multiple days in the fridge.
• The mushroom and vegetable combination creates serious depth – Sixteen ounces of mushrooms sauteed with onion, carrots, celery, and garlic before the broth goes in produces an earthy, savory base that the wild rice and coconut milk roux build on beautifully.
• One pot, minimal cleanup – Everything except the small roux saucepan happens in a single large stockpot. That’s two pans total, one of which is small and easy to clean.
• Naturally vegan and dairy-free – No modifications needed. The coconut milk roux handles all the richness and creaminess without any animal products.
• Better the next day – This soup genuinely improves overnight as the wild rice absorbs more broth and the flavors meld more completely. Day-two bowls are legitimately better than day-one.
• Freezes for three months – Make a large batch, freeze in individual portions, and have a proper comfort meal available any night of the week for months.
• The lemon juice at the end is essential – A squeeze of fresh lemon juice stirred in right before serving brightens the entire soup and prevents the coconut from tasting heavy. Don’t skip it.

Creamy Mushroom and Wild Rice Soup Ingredients

Two components that come together sequentially: the main soup and the coconut milk roux. Here’s everything you need.

Soup

• 4 tablespoons olive oil, divided (1 tablespoon for the vegetables, 3 tablespoons for the roux)
• 1 small white onion, chopped
• 3 medium carrots, chopped
• 4 stalks celery, chopped
• 16 oz button mushrooms, chopped
• 2 to 3 garlic cloves, minced
• 1 tablespoon Italian seasoning
• Salt and pepper to taste
• 3/4 cup wild rice
• 4 cups vegetable broth
• Juice of 1/2 lemon

Coconut Milk Roux

• 3 tablespoons olive oil (remaining from the 4 tablespoons above)
• 1/3 cup all-purpose flour or gluten-free flour blend
• 1 can full-fat coconut milk, 14.5 oz

Ingredient Notes and Shopping Tips

The mushrooms – quantity and variety matter: Sixteen ounces of mushrooms sounds like a lot and it is – but mushrooms lose roughly half their volume when cooked down. Starting with that full pound ensures that the finished soup has a proper mushroom presence in every spoonful rather than the mushrooms disappearing into the background. Button mushrooms are called for and work perfectly. Baby bella (cremini) mushrooms have a more robust, slightly earthier flavor that takes the soup in a more complex direction. A combination of button and cremini is excellent. If you can find shiitake or oyster mushrooms, adding even a small amount (2 to 3 oz) transforms the umami depth of the soup significantly. Whatever you use, chop the mushrooms fairly small – about half-inch pieces – so they distribute evenly through the soup rather than sitting as large chunks.

Wild rice – why not regular rice: Wild rice is not actually rice – it’s a grass seed with a chewy, slightly nutty character that holds up perfectly in a long-simmered soup. It takes about 40 to 45 minutes to cook through fully, which is why it goes in early with the broth. Regular white rice would become mushy and disintegrate; brown rice is closer to wild rice in cooking time but has a less distinctive flavor. The wild rice is worth using specifically because it stays properly textured even after multiple days in the fridge, which makes this soup genuinely great for meal prep.

The roux technique – why it works: A roux is a mixture of fat and flour cooked together before liquid is added. In traditional cream soups, butter and flour are cooked into a roux and then cream or milk is added. Here, olive oil and flour create the roux and full-fat coconut milk is the liquid. The flour is essential – it’s what creates the thick, sauce-like consistency of the roux that gives the finished soup its creamy texture. Without the flour, the coconut milk would simply thin the soup rather than adding body and creaminess. Whisk the flour into the oil before adding any liquid and cook it for at least 60 seconds before the coconut milk goes in – this removes the raw flour taste.

Full-fat vs. lite coconut milk: Full-fat coconut milk is specified and it’s the right choice for the roux. Lite coconut milk is too thin to create the thick, sauce-like consistency that the roux needs to produce. Full-fat coconut milk – the kind that often separates in the can with a thick cream at the top – gives you the fat content needed for the roux to work properly. Open the can and stir well before measuring to reintegrate the cream and liquid.

The lemon juice at the end: This seems like a small garnish but it’s genuinely important. Full-fat coconut milk in a warm soup can taste slightly heavy or sweet if there’s no acid to balance it. The half lemon squeezed in at the very end neutralizes that heaviness and makes the whole soup taste brighter, more balanced, and less obviously coconut-forward. Don’t add it during cooking – add it off-heat right before serving so the volatile citrus aromatics are preserved.

Substitutions That Work

• Mushroom broth instead of vegetable broth: Amplifies the mushroom flavor significantly – a great upgrade if you want a more intensely mushroom-forward soup
• Gluten-free flour: A good GF all-purpose blend works as a direct substitute for the flour in the roux – same quantity, same method
• Cashew cream instead of coconut milk: Blend half a cup of raw cashews with one cup of water until completely smooth – produces a neutral-flavored creamy base without any coconut taste
• Brown rice instead of wild rice: Works but needs slightly less simmer time (about 25 minutes) and doesn’t have the same nutty, distinct texture of wild rice
• Splash of white wine: Add a quarter cup of dry white wine after sauteing the vegetables and let it reduce by half before adding the broth – adds depth and complexity
• Kale or spinach: Stir in a cup of either off-heat with the lemon juice for extra greens and color

How To Make Creamy Mushroom and Wild Rice Soup

The process runs in two parallel tracks: the main soup in the large pot and the coconut milk roux in a small saucepan. Here’s the complete walkthrough.

Building the Soup Base

Heat 1 tablespoon of the olive oil in a large stockpot or Dutch oven over medium heat. Add the chopped onion, carrots, and celery all at once. Saute for 3 to 4 minutes, stirring occasionally, until the onion becomes translucent and the vegetables start to soften slightly at the edges.

Add the chopped mushrooms, minced garlic, Italian seasoning, salt, and pepper. The mushrooms will immediately absorb the olive oil and begin releasing their liquid. Cook for 2 to 3 more minutes, stirring occasionally. Don’t rush this step – you want the garlic to become fragrant and the mushrooms to start softening and releasing their moisture. This is the stage that builds the savory, earthy foundation of the soup’s flavor.

Callie’s Kitchen Note: I used to add the mushrooms and immediately pour in the broth because I was impatient to get the soup going. The mushrooms didn’t have time to release their liquid and develop any flavor before being diluted by the broth. When I started giving them the full 2 to 3 minutes in the hot pan, the soup’s depth of flavor improved noticeably. Mushrooms have an enormous amount of umami to contribute – let them have the time to start doing it before the liquid goes in.

Adding the Wild Rice and Simmering

Stir in the wild rice and pour the vegetable broth over everything. Bring the mixture to a boil over medium-high heat – this usually takes about 5 minutes. Once boiling, reduce the heat to medium-low, cover the pot with a lid, and let it simmer for 30 minutes. The wild rice needs this time to cook through properly. Check occasionally and stir to make sure nothing is sticking to the bottom.

At the 30-minute mark, taste a few grains of wild rice. They should be tender and have opened slightly (the grain splits and curls when fully cooked) but still have a definite chew. If they’re still hard, cover and simmer for another 5 to 10 minutes before making the roux.

Making the Coconut Milk Roux – The Critical Technique

With about 5 minutes left in the soup’s simmer time, start the roux in a separate small saucepan. Heat the remaining 3 tablespoons of olive oil over medium heat. When the oil is hot and shimmering, add the flour all at once and whisk immediately and vigorously. The flour will absorb the oil and form a thick, paste-like mixture. Cook this flour-oil mixture for 60 to 90 seconds, whisking constantly – you should smell a very slight nutty quality develop as the raw flour cooks. This step is what prevents the finished soup from tasting like raw flour.

Now, slowly pour the full-fat coconut milk into the roux in a thin, steady stream while whisking continuously. Work in small additions at first – a splash at a time – whisking fully incorporated before adding more. Adding the liquid too fast creates lumps rather than a smooth sauce. As you add more coconut milk and the mixture loosens, you can add it more quickly. The finished roux should be thick and glossy, coating the back of a spoon generously. If any lumps form, whisk vigorously or use a fork to work them out before adding it to the soup.

Callie’s Kitchen Note: The first time I made this roux I poured all the coconut milk in at once and ended up with a lumpy mess that no amount of whisking could fully smooth out. The finished soup was fine but had tiny flour lumps throughout that were distracting. Slow addition, continuous whisking, and patience for the first few tablespoons is the technique that produces a smooth, glossy roux. Once you’ve added about a quarter of the coconut milk and the roux has loosened, the rest can go in more quickly. Slow at first, faster as it loosens.

Combining and Finishing

When the soup timer goes off and the wild rice is tender, stir the coconut milk roux directly into the soup pot. The soup will immediately become visibly thicker and more opaque as the roux integrates. Let the soup cook for another 5 minutes over medium-low heat, stirring occasionally, to allow the roux to fully incorporate and the soup to reach its final creamy consistency.

Remove from heat and stir in the lemon juice. Taste the soup at this point and adjust – more salt if it tastes flat, more lemon if it tastes heavy, a pinch of Italian seasoning if the herb flavor needs a boost. Let the soup sit covered for 5 minutes before serving – the flavors meld noticeably even in this short resting time.

Speed Hacks for Weeknight Cooking

• Use pre-sliced mushrooms from the grocery store to eliminate the most time-consuming prep task in this recipe
• Buy pre-cut mirepoix (onion, carrot, celery mix) from the produce section – available at most grocery stores and eliminates all vegetable chopping
• Make the roux ahead and store it covered in the fridge for up to 3 days – warm gently before whisking into the finished soup
• Wild rice can be cooked in advance – simmer in vegetable broth until tender, then refrigerate and add to the soup in the last 10 minutes of cooking instead of the full 30-minute simmer
• Double the batch with no extra active work and freeze half for future weeks

Common Mistakes To Avoid

This soup has a few specific technique moments where small mistakes make a noticeable difference.

Skipping the roux step or making it incorrectly. The coconut milk roux is the technique that creates this soup’s signature creamy texture. Without it, adding coconut milk directly to the broth just thins the soup rather than enriching it. Making the roux incorrectly (adding liquid too fast, not cooking the flour first) produces lumps or a raw-flour taste. Take the time to do it properly – 3 to 4 minutes of careful whisking makes the whole recipe work.

Not sauteing the mushrooms long enough before adding broth. Mushrooms that go straight from raw into liquid don’t develop the savory, umami depth that makes mushroom soup great. Give them 2 to 3 minutes in the hot pan to start releasing their liquid and developing flavor before the broth goes in. The difference in the finished soup is real.

Not checking the wild rice doneness before making the roux. Wild rice cooking time varies – fresher rice cooks faster, older rice slower. Always taste a few grains at the 30-minute mark. If they’re still hard, give them more time before introducing the roux. Undercooked wild rice is unpleasant to eat and more time in the broth is the only fix.

Adding the lemon juice while the soup is still boiling. Lemon juice added to a boiling soup immediately loses most of its volatile aromatic quality – what you’re left with is just acidity without the fresh lemon flavor. Add it off-heat or over very low heat, right before serving, so the aroma is preserved.

Not tasting and adjusting before serving. The ideal final seasoning of this soup depends on your specific broth (how salty it is), your mushrooms (how earthy and savory), and the fat content of your coconut milk can. Always taste before serving and be prepared to add more salt, lemon juice, or Italian seasoning. A final taste and adjustment makes the difference between a good soup and a great one.

Storage And Reheating

This mushroom wild rice soup is one of the best soups for extended storage. The flavors develop significantly as it sits.

Fridge: Store in an airtight container for up to 4 days. The soup will thicken considerably in the fridge as the wild rice continues absorbing the broth and the coconut milk roux consolidates. This is normal and expected – add vegetable broth or water when reheating to return it to your preferred consistency.

Freezer: Freeze in individual portions for up to 3 months. This soup freezes exceptionally well – the wild rice holds its texture after freezing and the coconut milk roux doesn’t separate the way dairy cream would. Flatten the bags or use stackable containers for efficient storage. Thaw overnight in the refrigerator before reheating.

Reheating Without Breaking the Creaminess

• Stovetop (best): Warm in a saucepan over medium-low heat, adding vegetable broth or water as needed to return the soup to its original consistency. Stir frequently – the coconut roux can stick if the heat is too high. Warm slowly and stir in a squeeze of fresh lemon juice right before serving to restore brightness.
• Microwave: Heat at 80% power in 30-second intervals, stirring between each. The lower power setting prevents the soup from overheating unevenly. Add a splash of broth before microwaving if the soup is very thick from refrigeration.

Serving Day-Two Soup

The soup will be noticeably thicker the next day as the wild rice absorbs more liquid – almost stew-like in consistency. Many people actually prefer it this way. If you want it as a proper soup again, add half a cup of vegetable broth and warm over medium-low heat, stirring until it reaches your preferred consistency. A fresh squeeze of lemon and a scatter of fresh herbs over each bowl make reheated portions taste nearly as good as freshly made.

Creamy Mushroom and Wild Rice Soup Variations

The base recipe is excellent and very flexible. Here are some directions worth exploring.

Mixed Mushroom Version: Use a combination of button mushrooms, cremini, and shiitake (or any combination totaling 16 oz). Different mushroom varieties have different flavor profiles – cremini are earthier, shiitake are more intensely umami, oyster mushrooms are milder and silkier. A mix produces the most complex, deeply mushroom-flavored soup. This is the version I make for guests.

White Wine and Thyme Version: After sauteing the vegetables, add a quarter cup of dry white wine before the broth goes in. Let it reduce for 2 minutes. Swap the Italian seasoning for 2 teaspoons of fresh thyme leaves. The wine and thyme together take the flavor profile in a more classically French direction that is genuinely elegant.

Fall Butternut Squash Addition: Peel, dice, and roast a cup of butternut squash at 400 degrees F for 20 minutes until slightly caramelized. Stir into the finished soup with the coconut milk roux. The sweet squash against the earthy mushrooms and nutty wild rice is a particularly beautiful autumn combination.

Spinach and Kale Version: Stir in a cup of baby spinach and a cup of roughly chopped kale off-heat along with the lemon juice. Both wilt in the residual heat and add vibrant color and substantial nutrition. The greens hold up well in the fridge and make the soup feel even more complete as a main course.

Truffle Oil Finish: Add a very small drizzle (less than a teaspoon per bowl) of good-quality truffle oil over each serving. The truffle amplifies the mushroom flavor dramatically. Use the lightest hand – a little goes an extremely long way and too much is overwhelming.

Chestnuts for Winter Heartiness: Fold a cup of cooked, roughly chopped chestnuts (available canned at most grocery stores in the fall and winter) into the finished soup. They add a slightly sweet, starchy quality that makes the soup feel particularly warming and festive.

Dairy Version (for non-vegan households): Replace the coconut milk in the roux with heavy cream and use butter instead of olive oil. The technique is identical – butter and flour roux, heavy cream whisked in slowly. This version is undeniably more indulgent and deeply rich.

Serving Suggestions

This creamy mushroom wild rice soup is hearty enough to be a complete dinner on its own. Here’s how to build a satisfying meal around it.

The classic comfort dinner: A deep bowl of soup with a thick slice of crusty sourdough or a warm sourdough roll. The bread is for dipping and soaking up the creamy broth, which is the most satisfying thing about this meal. This is genuinely all you need for a complete, comforting dinner on a cold night.

For something lighter alongside: Pair with a simple arugula salad dressed with balsamic vinaigrette and shaved Parmesan. The peppery arugula and tangy balsamic cut through the richness of the soup beautifully and make the meal feel balanced rather than heavy.

For a dinner party first course: Serve in small warmed bowls with a drizzle of extra coconut milk swirled on top and a sprig of fresh thyme or a scatter of fresh parsley. The deep golden-brown color of the soup looks stunning in a white bowl and the presentation is naturally elegant without any extra effort.

Garnish ideas that elevate the presentation: A swirl of coconut cream or extra coconut milk on top looks beautiful. Fresh thyme or flat-leaf parsley adds color. A few drops of truffle oil add luxury. Sauteed mushroom slices placed on top echo the main ingredient and look genuinely restaurant-quality. Crispy fried shallots add crunch and visual texture.

Beverage pairings: A crisp, dry white wine is the natural companion – Sauvignon Blanc has enough acidity to cut through the coconut milk richness while its grassy, citrus notes complement the earthy mushrooms. Chardonnay works if you want something with more body. For non-alcoholic, a cozy chai tea or a warm herbal tea (thyme or sage-based) mirrors the warming, earthy quality of the soup.

Creamy Mushroom and Wild Rice Soup FAQ

Recipes You May Like

If this creamy mushroom and wild rice soup has become a cold-weather staple, here are three more hearty, comforting soups worth adding to the rotation:

• Anti-Inflammatory Carrot Soup with Ginger and Turmeric – Another velvety, dairy-free blended soup in a completely different flavor direction. Warm, healing, and perfect for the colder months alongside this mushroom version.
• French Onion Soup – For the nights when you want a deeply savory, indulgent soup that takes a little more time but delivers maximum comfort. The caramelized onion base and cheesy toast topping is genuinely one of the most satisfying soups in existence.
• Cozy Minestrone Soup – A hearty, chunky Italian vegetable soup that is perfect for batch cooking and meal prep. Different from this creamy mushroom version but equally cozy and satisfying.

Conclusion

This creamy mushroom and wild rice soup is the recipe that proves dairy-free can mean genuinely, uncompromisingly creamy. The coconut milk roux is the technique that changes everything – once you understand how to make it properly, you’ll use it for other soups and sauces too. Combined with a full pound of earthy mushrooms, nutty wild rice, and classic aromatics, it produces a bowl of soup that is deeply comforting and genuinely satisfying in all the ways that matter.

Make it on a Sunday, have it for dinner, and experience what it tastes like on Tuesday when the wild rice has absorbed more of the broth and the flavors have had time to completely find each other. That’s when this soup is at its absolute best. Come back to tell me in the comments what mushroom variety you used and what you served it with. And save this on Pinterest for every cold night when you need the most comforting possible bowl of soup with the least possible effort.

Happy cooking, friends!

Callie

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