Crawfish Fettuccine with Velveeta: Creamy Cajun Pasta

Crawfish fettuccine with Velveeta is a creamy Louisiana-inspired pasta made with crawfish tails, sautéed vegetables, Cajun seasoning, and a smooth cheese sauce. Velveeta melts readily into the sauce, while the crawfish and vegetables bring savory flavor and a little sweetness; family versions vary in seasoning, vegetables, and cheese.

Ingredients

12 oz (340 g) fettuccine
1 tbsp (17 g) kosher salt for the pasta water
4 tbsp (57 g) unsalted butter
1 cup (150 g) finely chopped yellow onion
1 cup (150 g) finely chopped green bell pepper
½ cup (50 g) finely chopped celery
3 garlic cloves (9 g), minced
2 tbsp (16 g) all-purpose flour
1 cup (240 ml) low-sodium chicken broth
1 cup (240 ml) evaporated milk
8 oz (227 g) Velveeta, cut into small cubes
1 lb (454 g) cooked crawfish tail meat, thawed if frozen and well drained
1½ tsp (4 g) Cajun seasoning, plus more to taste
½ tsp (1 g) smoked or sweet paprika
¼ tsp (0.5 g) black pepper
1 tsp (5 ml) hot sauce, optional
¼ tsp (1.5 g) fine salt, or to taste
⅓ cup (30 g) thinly sliced green onions
2 tbsp (8 g) chopped fresh parsley

Instructions

Get everything ready. Chop the onion, pepper, celery, garlic, and green onions; cut the Velveeta into small cubes so it melts evenly. If using frozen crawfish, thaw it in the refrigerator ahead of time, then drain it well and pat it dry. Measure the broth and seasonings. This preparation takes about 20 minutes when the crawfish is already thawed.
Boil the pasta. Bring a large pot of water to a boil, add the tablespoon of kosher salt, and cook the fettuccine according to its package directions until just al dente. Start checking a minute before the shortest suggested cooking time. Before draining, scoop out 1 cup (240 ml) of pasta water and set it aside. Drain the pasta; do not rinse it, since the starch on the strands helps the sauce cling.
Soften the vegetables. While the pasta cooks, melt the butter in a wide skillet or Dutch oven over medium heat. Add the onion, bell pepper, and celery and cook for 5–7 minutes, stirring often, until softened but not browned. Stir in the garlic and cook for about 30 seconds, just until fragrant. Lower the heat if the garlic starts to color.
Make a light sauce base. Sprinkle the flour over the vegetables and stir for 1 minute so no dry pockets remain. Pour in the chicken broth gradually while stirring, then add the evaporated milk. Bring the mixture to a gentle simmer, not a hard boil, and stir for 2–3 minutes until it looks slightly thickened. Scrape the bottom and corners of the pan so the flour does not stick.
Melt in the cheese. Turn the heat to low and add the Velveeta a handful at a time, stirring until each addition melts before adding more. Keep the sauce below a boil: high heat can make a cheese sauce oily or grainy. Stir in the Cajun seasoning, paprika, black pepper, and hot sauce if using. Taste before adding the measured salt, because the cheese, broth, and seasoning blends can already be salty.
Heat the crawfish safely. Fold the drained crawfish tails into the sauce and warm gently for 2–4 minutes, stirring carefully so the tails stay intact. Use a food thermometer to check that the seafood reaches the USDA FSIS safe minimum temperature of 145°F (63°C). Avoid prolonged simmering, which can make the small pieces tough. If the crawfish was already cooked, this step is for reheating it thoroughly in the sauce.
Combine and adjust. Add the drained fettuccine to the skillet and toss with tongs until coated. Add reserved pasta water a few tablespoons at a time if the sauce seems too thick or clings in heavy clumps; it should coat the noodles smoothly. Taste and adjust with more Cajun seasoning, pepper, hot sauce, or salt. The pasta will continue to absorb sauce as it sits, so keep a little pasta water nearby.
Finish and serve. Fold in most of the green onions and parsley, then scatter the remainder over the top. Serve hot as soon as the sauce is glossy and the pasta is evenly coated. The cook time is about 30 minutes, including bringing the pasta water to a boil; the sauce and noodles cook at the same time.

Tips

Drain the crawfish thoroughly. Excess thawing liquid can water down the cheese sauce. If the tails are frozen in a block, thaw them overnight in the refrigerator in a covered bowl, then drain and blot them before cooking. Avoid thawing seafood on the counter.
Use gentle heat for the cheese. Once the Velveeta goes in, keep the pan on low and stir steadily. A rolling boil can cause separation, and adding the cheese gradually gives it time to melt into the milk and broth.
Adjust the seasoning after the cheese melts. Cajun seasoning blends differ in salt and heat. Start with the listed amount, taste the finished sauce, and increase it gradually. If the dish is too spicy, a splash of evaporated milk can soften the heat without changing the basic flavor.
Substitute thoughtfully. If crawfish tails are unavailable, use an equal amount of peeled, cooked shrimp and heat it to 145°F (63°C) in the sauce. The result is shrimp fettuccine rather than crawfish fettuccine, with a slightly firmer bite. For a less processed cheese flavor, replace up to half the Velveeta with mild cheddar, but melt it slowly because natural cheese is more likely to turn grainy.

Serving Suggestions

Serve the fettuccine in warm shallow bowls so the creamy sauce stays fluid while people eat. A crisp green salad with a simple vinaigrette, steamed green beans, or roasted broccoli balances the richness. Crusty bread or garlic bread is useful for catching extra sauce, though it is not necessary alongside a full serving of pasta. Offer additional hot sauce and sliced green onions at the table so each person can adjust their portion. If serving this as part of a larger meal, a smaller bowl with a vegetable side is usually plenty.

Variations

Make it more vegetable-forward: Add 1 cup (100 g) sliced mushrooms with the onion and pepper, or stir in 2 cups (60 g) baby spinach after the cheese has melted. Mushrooms should soften before you add the flour; spinach needs only a minute or two to wilt.

Change the pasta: Linguine, penne, or rotini all work. Short pasta is easy to serve for a potluck, while linguine keeps a similar feel to fettuccine. Cook any shape just to al dente and reserve pasta water as directed.

Use a different seafood: Substitute cooked shrimp for crawfish, or use half crawfish and half shrimp. Keep the total seafood amount at 1 lb (454 g), and check the seafood reaches 145°F (63°C). If using raw shrimp, cook it in the sauce until it is opaque and reaches that temperature; take care not to overcook it.

Make the sauce less rich: Replace half the evaporated milk with low-sodium broth. The sauce will be thinner and less creamy, so add pasta water sparingly and serve promptly. For a spicier Cajun-style version, increase the hot sauce or seasoning a little at a time instead of adding a large amount at once.

Storage and Reheating

Refrigerate leftovers within 2 hours of cooking in a shallow, airtight container. They keep for 3–4 days in the refrigerator. The sauce firms up when cold and may separate slightly after reheating, which is normal for a cheese-based pasta sauce. For best texture, store any extra pasta water separately if you have some, or plan to loosen the leftovers with a splash of milk or broth.

Reheat a single portion in a covered microwave-safe dish in 30-second bursts, stirring between bursts and adding a teaspoon or two of milk, broth, or water as needed. For several portions, warm them in a covered skillet over low heat with a small splash of liquid, stirring gently. Reheat leftovers to 165°F (74°C), checking with a food thermometer, and avoid repeated cooling and reheating. Freezing is possible for up to about 2 months, but the sauce may become grainy or watery after thawing; thaw overnight in the refrigerator and reheat gently, stirring to bring it back together.

Frequently Asked Questions

Can I use frozen crawfish tails?
Yes. Thaw them in the refrigerator, drain away the liquid, and pat them dry before adding them to the sauce. Many packaged tails are already cooked, so they only need gentle warming; still check the seafood reaches 145°F (63°C) in the finished sauce. If the package is labeled raw, cook the tails fully to that temperature.

Can I make crawfish fettuccine without Velveeta?
Yes, but the sauce will behave differently. Use a mixture of mild cheddar and Monterey Jack, adding finely grated cheese a little at a time over low heat. Natural cheeses can turn grainy if overheated, so do not boil the sauce. Velveeta is included here because it melts into a particularly smooth, dependable sauce.

What can I use instead of crawfish?
Peeled cooked shrimp is the closest easy-to-find seafood substitute, used in the same quantity. Chicken is another option, though it changes the dish substantially; cook chicken pieces to the USDA FSIS safe minimum internal temperature of 165°F (74°C) before serving. You can also leave out the seafood and add mushrooms, but the flavor will be more vegetable-forward.

Why is my cheese sauce too thick?
Fettuccine absorbs sauce quickly, especially if it sits after cooking. Stir in reserved pasta water, milk, or broth a tablespoon at a time over low heat until the sauce loosens. If it is too thin, let it simmer gently for a minute or two before adding the pasta, rather than boiling it hard after the cheese is in.

Can I prepare it ahead?
You can chop the vegetables, cube the cheese, and thaw the crawfish a day ahead, keeping each refrigerated in a covered container. For the best texture, cook the pasta and finish the sauce shortly before serving. If you make the complete dish in advance, cool and refrigerate it promptly, then reheat gently to 165°F (74°C) with added liquid to restore a creamy consistency.

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

Spotted an error? Tell us and we will correct it (corrections policy).