Crawfish Fettuccine is a rich and creamy Southern classic that brings the bold flavors of Louisiana right to your plate. Loaded with succulent crawfish tails, silky fettuccine noodles, and a luscious Cajun-spiced cheese sauce, this dish is both comforting and indulgent. It’s the kind of meal that fills the kitchen with a savory aroma and brings everyone to the table with anticipation.

The balance of spice, creaminess, and seafood makes Crawfish Fettuccine a standout dish for special occasions, weekend dinners, or when you’re craving a little Southern decadence. Whether you’re from the Gulf Coast or just looking to explore Cajun flavors, this recipe offers a mouthwatering journey you won’t forget.
Ingredients for this Crawfish Fettuccine
- 1 lb fettuccine pasta
- 1/2 cup (1 stick) unsalted butter
- 1 small onion, finely chopped
- 1 green bell pepper, finely chopped
- 2 cloves garlic, minced
- 1 lb crawfish tails (cooked and peeled)
- 1 tsp Cajun seasoning (adjust to taste)
- 1/2 tsp black pepper
- 1/2 tsp paprika
- 1/4 tsp cayenne pepper (optional for more heat)
- 1 cup heavy cream
- 1 cup half-and-half
- 1 1/2 cups shredded cheddar cheese
- 1/2 cup grated Parmesan cheese
- Salt to taste
- Fresh parsley, chopped (for garnish)

Step 1: Cook the Fettuccine
Bring a large pot of salted water to a boil. Add the fettuccine and cook according to the package directions until al dente. Drain and set aside, reserving a bit of pasta water in case the sauce needs thinning later.
Step 2: Sauté the Vegetables
In a large skillet or sauté pan, melt the butter over medium heat. Add the chopped onion and green bell pepper. Sauté for about 4-5 minutes until softened and translucent. Stir in the minced garlic and cook for another minute until fragrant.
Step 3: Add the Crawfish and Seasonings
Toss the crawfish tails into the skillet. Sprinkle in the Cajun seasoning, black pepper, paprika, and cayenne pepper. Stir well to coat the crawfish and let them cook for 2-3 minutes until heated through and lightly browned in spots.
Step 4: Make the Creamy Sauce
Pour in the heavy cream and half-and-half, stirring gently to combine with the crawfish mixture. Lower the heat and allow the sauce to simmer for about 5-7 minutes, giving it time to thicken slightly.
Step 5: Melt the Cheeses
Add the shredded cheddar and Parmesan cheese to the sauce, stirring until melted and smooth. If the sauce becomes too thick, add a bit of reserved pasta water to loosen it up. Taste and adjust salt or seasoning as needed.
Step 6: Combine with Pasta
Add the cooked fettuccine to the skillet and toss until every strand is coated in the creamy crawfish sauce. Let it cook together for another 1-2 minutes to meld the flavors.
Step 7: Serve and Garnish
Transfer the Crawfish Fettuccine to serving plates or a large dish. Sprinkle with chopped fresh parsley for color and a pop of freshness. Serve hot, with crusty bread or a green salad on the side if desired.
Storage Instructions
Crawfish Fettuccine stores well and can be enjoyed for a few days after cooking. To store leftovers:
- Refrigerator: Place the cooled pasta in an airtight container and refrigerate for up to 3 days.
- Freezer: While you can freeze it, the creamy sauce may separate upon reheating. If freezing, store in a tightly sealed container and consume within 1 month.
- Reheating: Warm on the stovetop over low heat, adding a splash of cream or milk to bring the sauce back to life. Microwave on medium power in 30-second bursts, stirring between intervals for even heating.
Estimated Nutrition (per serving – based on 6 servings)
- Calories: 520
- Protein: 28g
- Fat: 32g
- Carbohydrates: 32g
- Sugar: 2g
- Fiber: 2g
- Sodium: 560mg
- Cholesterol: 180mg
Note: Nutrition may vary depending on specific ingredients and portion sizes.
Frequently Asked Questions
What can I substitute for crawfish if I can’t find it?
Shrimp is the best alternative. It offers a similar texture and pairs beautifully with the creamy, Cajun flavors.
Can I make this dish ahead of time?
Yes! Prepare everything and refrigerate. Reheat gently on the stovetop before serving. Add a splash of cream if the sauce thickens too much.
Is this dish spicy?
It has a mild to moderate heat. Adjust the cayenne pepper and Cajun seasoning to your taste preference.
What type of pasta can I use instead of fettuccine?
Linguine, tagliatelle, or even penne can be used if you prefer a different shape or texture.
Can I use frozen crawfish tails?
Absolutely. Just make sure they’re thawed and drained well before cooking.
Is it gluten-free?
Not as written, but you can substitute with gluten-free pasta and ensure your seasonings and cheeses are gluten-free certified.
How do I make it lighter?
Use half-and-half only, reduce cheese, or sub in evaporated milk for a slightly lighter version.
What should I serve with Crawfish Fettuccine?
A crisp green salad, garlic bread, or roasted veggies are all perfect side dishes to round out the meal.

Crawfish Fettuccine
- Total Time: 35 minutes
- Yield: 6 servings
Description
If you’re craving a comforting Southern dish packed with flavor, this Crawfish Fettuccine is a must-try. It’s creamy, cheesy, and filled with juicy crawfish tails—all wrapped around tender fettuccine pasta. Whether you’re looking for a quick dinner idea or aiming to impress guests with a unique Cajun twist, this easy recipe delivers. The combination of spice and richness makes it perfect for those who enjoy bold, hearty meals. From weeknight meals to indulgent weekend food ideas, Crawfish Fettuccine brings soul and satisfaction to your table with every bite.
Ingredients
1 lb fettuccine pasta
1/2 cup (1 stick) unsalted butter
1 small onion, finely chopped
1 green bell pepper, finely chopped
2 cloves garlic, minced
1 lb crawfish tails (cooked and peeled)
1 tsp Cajun seasoning (adjust to taste)
1/2 tsp black pepper
1/2 tsp paprika
1/4 tsp cayenne pepper (optional for more heat)
1 cup heavy cream
1 cup half-and-half
1 1/2 cups shredded cheddar cheese
1/2 cup grated Parmesan cheese
Salt to taste
Fresh parsley, chopped (for garnish)
Instructions
- Cook the fettuccine in salted boiling water until al dente. Drain and set aside.
- Melt butter in a large skillet over medium heat. Sauté onions and bell peppers until soft. Add garlic and cook for 1 more minute.
- Stir in the crawfish tails along with Cajun seasoning, black pepper, paprika, and cayenne. Cook for 2-3 minutes.
- Pour in heavy cream and half-and-half. Simmer on low for 5-7 minutes until the sauce thickens slightly.
- Add cheddar and Parmesan cheeses. Stir until melted and smooth. Adjust seasoning.
- Toss in the cooked fettuccine. Combine well and let it heat through for 1-2 minutes.
- Garnish with chopped parsley and serve hot.
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Dinner