This post may contain affiliate links. For more information, see our Affiliate Disclosure Policy.
This easy crawfish fettuccine recipe puts a delicious twist on creamy Alfredo pasta by infusing it with bold Cajun flavors and a rich, cheesy sauce. Packed with tender crawfish tails, Velveeta cheese, and a blend of spices, it’s the perfect dish to bring a little Mardi Gras celebration to your kitchen. Whether you’re feeding a crowd or just looking to spice up your weeknight dinner, this indulgent pasta dish is sure to impress.
Why You’ll Love This Crawfish Fettuccine Recipe
Key Benefits
- Quick & Easy: Ready in just over 30 minutes, perfect for busy weeknights.
- Family-Friendly: A comforting, crowd-pleasing dish that kids and adults alike will love.
- Budget-Friendly: Uses simple, readily available ingredients without compromising on flavor.
Taste & Texture
- Rich & Creamy: The velvety cheese sauce coats every strand of fettuccine beautifully.
- Cajun Kick: A perfect balance of spices with just the right amount of heat.
- Tender Crawfish: Juicy and succulent seafood that adds a unique depth to the dish.
Dietary Attributes
- Protein-Packed: Thanks to the crawfish, which is a lean and flavorful protein.
- Customizable: Easily adaptable for gluten-free diets by using GF pasta and flour substitutes.
Ingredients & Substitutions
Ingredient List
- 1 (16-oz) pack fettuccine
- 1/2 cup unsalted butter
- 1/2 red bell pepper, chopped
- 1 celery stalk, chopped
- 1 onion, chopped
- 6 garlic cloves, minced
- 1 lb frozen crawfish, thawed
- 2 tsp Cajun seasoning
- 1/2 tsp ground black pepper
- 3 tbsp all-purpose flour
- 3/4 cup half and half
- 1/2 cup sour cream
- 4 oz Velveeta cheese, cubed
- 2/3 cup parmesan cheese, freshly grated
- 2 green onions, sliced
- 2 tbsp freshly chopped parsley
Notes on Quality
Fresh vegetables will provide the best flavor, but frozen or pre-chopped veggies can save time without sacrificing too much taste. Opt for high-quality crawfish tails for the most authentic flavor. Velveeta cheese melts smoothly, giving the sauce its signature creamy texture.
Possible Substitutions
- Substitute fettuccine with any pasta like penne or linguine.
- Use heavy cream instead of half and half for a richer sauce.
- Try cream cheese in place of sour cream for a tangier flavor.
- Add diced tomatoes or mushrooms for extra texture.
Step-by-Step Instructions
- Cook pasta to al dente following the package instructions. Drain and set aside.
- In a large Dutch oven, melt butter over medium heat. Add chopped bell pepper, celery, and onion. Sauté for about 5 minutes until softened.

- Stir in minced garlic and cook for another minute until fragrant.
- Add the crawfish tails, Cajun seasoning, and black pepper. Cook for 3 minutes until the crawfish is heated through and well-seasoned.
- Sprinkle the flour over the mixture and stir well to coat the ingredients. Cook for another minute to remove the raw flour taste.
- Slowly pour in the half and half, stirring continuously to avoid lumps. Bring the mixture to a gentle simmer.
- Add the sour cream, Velveeta cheese, and parmesan cheese. Stir frequently until the cheese is fully melted and the sauce is smooth.
- Toss in the cooked pasta, green onions, and chopped parsley. Stir well to combine everything evenly.
- Remove from heat and serve hot.
Expert Tips & Tricks
Best Practices
- Cook the pasta just until al dente so it doesn’t get mushy when mixed with the sauce.
- Use a non-stick or heavy-bottomed pot to prevent the cheese from sticking.
- Stir the sauce constantly to ensure a smooth, creamy texture.
Common Mistakes
- Avoid overcooking the crawfish, as it can become tough and rubbery.
- Be cautious with Cajun seasoning, as some blends can be very salty. Start with less and adjust to taste.
- Don’t skip the flour step; it helps thicken the sauce perfectly.
Time-Saving Tips
- Prep the veggies in advance and store them in an airtight container.
- Use pre-cooked crawfish to cut down cooking time.
- Make the sauce ahead of time and simply reheat it before adding the pasta.
Serving Suggestions
Pairings
This crawfish fettuccine pairs beautifully with a side of Valentine’s Day Stuffed Mushrooms for a delicious appetizer.
Presentation Ideas
Garnish with extra green onions and parsley for a fresh pop of color. Serve in a deep pasta bowl for an elegant touch.
Beverage Pairings
Pair this dish with a crisp white wine like Sauvignon Blanc or a refreshing iced tea to balance the richness of the sauce.
Storage & Reheating
Leftover Storage
Store any leftover crawfish fettuccine in an airtight container in the refrigerator for up to 3 days. Avoid freezing, as the creamy sauce can separate when thawed.
Reheating Methods
Reheat on the stovetop over low heat, adding a splash of milk or half and half to restore creaminess. Alternatively, microwave in short intervals, stirring in between.
Frequently Asked Questions
Substitutions & Adjustments
Can I use fresh crawfish instead of frozen?
Absolutely! Fresh crawfish adds even more flavor. Just be sure to cook it properly before adding it to the pasta.
What if I don’t have Velveeta cheese?
You can substitute with shredded cheddar or Monterey Jack, though the sauce may not be as smooth.
Troubleshooting
Why is my sauce too thick?
Add a little reserved pasta water or extra half and half to loosen it up.
How can I make this less spicy?
Use mild Cajun seasoning or cut back on the black pepper.
Variations & Customizations
Dietary Adaptations
- Make it gluten-free by using gluten-free pasta and flour alternatives like cornstarch.
- Swap dairy ingredients with plant-based alternatives to make it dairy-free.
Flavor Twists
- Add a splash of hot sauce for an extra spicy kick.
- Stir in some cooked and crumbled bacon for a smoky flavor boost.
- Try using a mix of seafood like shrimp and crab for a seafood pasta medley.
Seasonal/Holiday Versions
Serve this dish at a Mardi Gras party or holiday gathering for a fun, festive meal. Add purple, green, and gold garnishes for extra flair.
Conclusion
This easy crawfish fettuccine recipe is creamy, cheesy, and packed with Cajun flair. Whether you’re making it for a special occasion or a comforting dinner at home, it’s a dish that’s sure to impress. Give it a try and let us know what you think in the comments. For more delicious recipes, check out our Mini Spinach and Feta Puffs and Heart-Shaped Caprese Skewers.
Explore more recipes on Pinterest at Cooking with Callie and save this one for later.



Easy Crawfish Fettuccine Recipe – A Creamy Cajun Delight
- Total Time: 33 minutes
- Yield: 6 servings 1x
- Diet: Low Fat
Description
This easy crawfish fettuccine recipe combines creamy, cheesy goodness with bold Cajun flavors for a comforting, crowd-pleasing meal. Featuring tender crawfish tails, Velveeta cheese, and a perfectly seasoned sauce, it’s an irresistible dish that’s perfect for weeknight dinners or festive gatherings like Mardi Gras. Serve it with garlic bread and a crisp salad for a complete meal.
Ingredients
- 1 (16-oz) pack fettuccine
- 1/2 cup unsalted butter
- 1/2 red bell pepper, chopped
- 1 celery stalk, chopped
- 1 onion, chopped
- 6 garlic cloves, minced
- 1 lb frozen crawfish, thawed
- 2 tsp Cajun seasoning
- 1/2 tsp ground black pepper
- 3 tbsp all-purpose flour
- 3/4 cup half and half
- 1/2 cup sour cream
- 4 oz Velveeta cheese, cubed
- 2/3 cup parmesan cheese, freshly grated
- 2 green onions, sliced
- 2 tbsp freshly chopped parsley
Instructions
- Cook pasta to al dente according to package instructions. Drain and set aside.
- In a large Dutch oven, melt butter over medium heat. Add the bell pepper, celery, and onion. Sauté for about 5 minutes until softened.
- Stir in the minced garlic and cook for another minute until fragrant.
- Add the crawfish, Cajun seasoning, and black pepper. Cook for 3 minutes until heated through.
- Sprinkle in the flour, stirring continuously for about a minute until combined.
- Slowly pour in the half and half, stirring frequently, and bring to a simmer.
- Add the sour cream, Velveeta, and parmesan cheese. Stir until melted and smooth.
- Add the cooked fettuccine, green onions, and parsley. Toss to combine.
- Remove from heat and serve warm, garnished with extra parsley if desired.
Notes
- Fresh crawfish can be used instead of frozen for an even richer flavor.
- Reserve some pasta water to adjust the sauce consistency if needed.
- Adjust the Cajun seasoning based on spice preference.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
- Prep Time: 15 minutes
- Cook Time: 18 minutes
- Category: Main Course
- Method: Stovetop
- Cuisine: Cajun
Nutrition
- Serving Size: 1 serving
- Calories: 540 kcal
- Sugar: 4 g
- Sodium: 820 mg
- Fat: 32 g
- Saturated Fat: 18 g
- Unsaturated Fat: 12 g
- Trans Fat: 0 g
- Carbohydrates: 42 g
- Fiber: 2 g
- Protein: 24 g
- Cholesterol: 130 mg