Creamy Cajun Seafood Pasta

Featured in: One-Pot Meals

Enjoy a decadent dish featuring fettuccine tossed with plump shrimp, sweet scallops, and delicate lump crab in a robust Cajun cream sauce. Aromatic onions, garlic, and red bell pepper blend with buttery Parmesan for a savory depth, while a touch of cayenne adds gentle heat. Finished with fresh parsley and lemon, this is an impressive, vibrant meal ideal for sharing. The creamy sauce clings to al dente pasta, coating each bite with bold Southern flavors and rich seafood essence.

Updated on Sat, 11 Oct 2025 11:32:48 GMT
Creamy Cajun Seafood Pasta plated with shrimp and scallops in a luscious, spicy cream sauce. Save It
Creamy Cajun Seafood Pasta plated with shrimp and scallops in a luscious, spicy cream sauce. | zetluna.com

Creamy Cajun Seafood Pasta is that dish I pull out when I want to wow people without spending the whole evening in the kitchen. The rich Cajun-spiced cream sauce wraps around tender crab, shrimp, and scallops, turning any dinner into an occasion. Whether you are craving something cozy yet impressive for a weeknight or you want to channel New Orleans vibes at your next dinner party, this pasta never disappoints.

I made this for a friend's engagement dinner, and it turned into a tradition. Now every celebration calls for a big bowl of creamy Cajun seafood pasta and laughter at our table.

Ingredients

  • Shrimp: choose large peeled and deveined ones as they stay juicy and plump when cooked quickly
  • Sea scallops: dry-packed preferred for sweetness and firm texture
  • Lump crab meat: fresh or pasteurized check for cartilage for pure flavor with no crunch
  • Fettuccine or linguine: pick high-quality dry pasta for the best sauce absorption
  • Yellow onion: for sweetness and aromatic depth use a small one for balance
  • Garlic cloves: fresh and minced small so it melts into the sauce
  • Red bell pepper: adds brightness and color opt for glossy skin and heavy peppers
  • Unsalted butter: for richness and a silky sauce finish pick European-style for flavor
  • Olive oil: brings a bit of fruitiness to sautéing seafood and veggies
  • Heavy cream: fresh and very cold for stable and rich results avoid ultra-pasteurized when possible
  • Chicken or seafood stock: homemade or low-sodium for concentrated flavor
  • Freshly grated Parmesan cheese: not shelf-stable as it melts better and tastes pure
  • Cajun seasoning: use homemade for control or check labels for no fillers
  • Smoked paprika: opt for Spanish style for complexity
  • Sea salt and freshly ground black pepper: adjust to taste
  • Cayenne pepper: for an extra heat option skip or ramp up for spicy lovers
  • Fresh parsley: for a burst of green and freshness flat-leaf gives best flavor
  • Lemon wedges: brighten the dish and bring balance to the creaminess

Instructions

Cook the Pasta:
Boil a large pot of generously salted water bring it to a rapid boil before adding the pasta to help season every strand and prevent sticking. Cook fettuccine or linguine just until al dente following package instructions drain but reserve half a cup of the cooking water for finishing the sauce texture.
Prep the Seafood:
Pat shrimp and scallops completely dry using paper towels as this step ensures a golden sear and avoids excess water in your skillet. Sprinkle with Cajun seasoning and a little sea salt gently toss to coat evenly.
Sear the Seafood:
Heat butter and olive oil in a large skillet over medium-high wait until the butter foams and starts to brown for added nutty flavor. Place shrimp and scallops in a single layer and let them sear undisturbed for about one to two minutes per side so the surfaces caramelize but the insides stay tender. Remove all seafood to a plate and keep loosely covered with foil.
Sauté Aromatics and Pepper:
Add the rest of the butter to your skillet lower the heat to medium. Toss in the finely chopped onion and cook until translucent about two minutes stirring often. Add garlic and thinly sliced red bell pepper continue to sauté until the vegetables soften and become fragrant about three to four minutes.
Build the Sauce Base:
Sprinkle in remaining Cajun seasoning smoked paprika and cayenne adjusting for your favorite heat level. Pour in chicken or seafood stock use a wooden spoon to scrape up every browned bit from the bottom as these carry deep flavor into the sauce.
Simmer and Thicken Cream Sauce:
Lower heat to medium and slowly add heavy cream stirring gently. Bring to a low simmer but never boiling and sprinkle in freshly grated Parmesan cheese stir until the cheese is melted and your sauce thickens slightly this should take about three to four minutes and should coat the back of a spoon.
Return Seafood to the Sauce:
Gently fold in the crab meat along with shrimp and scallops carefully mix to avoid breaking up the crab too much. Let the seafood reheat in the sauce for two to three minutes until fully heated and flavors meld.
Toss with Pasta:
Add the cooked pasta right into the skillet tossing gently to get every strand coated if the sauce is too thick splash in a little reserved pasta water until you reach your favorite consistency.
Season and Serve:
Taste and adjust with extra salt and black pepper as needed. Top with fresh parsley and serve right away with lemon wedges on the side for a burst of freshness.
Closeup of Creamy Cajun Seafood Pasta sprinkled with fresh parsley and served with lemon wedges. Save It
Closeup of Creamy Cajun Seafood Pasta sprinkled with fresh parsley and served with lemon wedges. | zetluna.com

The fresh crab is my personal star in this recipe. Its sweetness pulls everything together. One of my favorite kitchen memories is my brother and I sneaking tastes of warm crab right out of the pan while the pasta finished cooking. Those bites made the final dish feel extra rewarding.

Storage Tips

This pasta is best served immediately for the creamiest texture but leftovers can be stored in an airtight container for up to two days in the fridge. When reheating use low heat and add a splash of cream or stock to loosen the sauce gently so it does not separate. Freezing is not ideal since creamy sauces can break.

Ingredient Substitutions

Feel free to change up the seafood blend based on what you find fresh at the market. Mussels add lovely brininess and calamari rings make the texture more interesting. If you prefer a lighter sauce swap in half-and-half or a dairy-free cream alternative. For the Cajun seasoning a homemade mix lets you control the salt and heat levels.

Serving Suggestions

Serve this pasta with a crunchy green salad or sautéed garlicky greens on the side for balance. Crusty bread is perfect for soaking up any extra sauce. If you are thinking of drinks a crisp white wine like Sauvignon Blanc or a citrusy pale ale brings out the best in the Cajun spices.

Cultural and Seasonal Notes

Creamy seafood pasta draws inspiration from New Orleans Cajun restaurants where seafood is a local star and bold flavors reign. Around Mardi Gras time add a few slices of spicy andouille sausage for an even more festive tracker. In peak tomato season tossing in a few chopped ripe tomatoes adds lovely acidity and freshness.

Seasonal Adaptations

Swap in asparagus or snap peas for added green crunch in spring. Try using roasted corn kernels during summer seafood season. In chillier weather a pinch of ground nutmeg offers a warm undertone.

Steaming bowl of Creamy Cajun Seafood Pasta, featuring tender seafood and rich Cajun-seasoned sauce. Save It
Steaming bowl of Creamy Cajun Seafood Pasta, featuring tender seafood and rich Cajun-seasoned sauce. | zetluna.com

This dish is a guaranteed crowd-pleaser every time. Get your ingredients ready and enjoy a New Orleans-inspired meal in less than an hour.

Common Questions About Recipes

Can I substitute other types of seafood?

Yes, feel free to use mussels, calamari, white fish, or your preferred seafood mix. Just adjust cooking times as needed to avoid overcooking.

What pasta shapes work best?

Fettuccine and linguine are ideal since their wide strands cling to creamy sauces, but penne or spaghetti can work in a pinch.

How spicy is the sauce?

The Cajun seasoning brings gentle heat, but you can add more or less cayenne to suit your preference. Taste before serving.

Can I make this dish lighter?

For a lighter option, substitute half-and-half for heavy cream and reduce the Parmesan quantity. Flavor remains rich yet less heavy.

How can I make it gluten-free?

Simply use certified gluten-free pasta. The sauce and seafood are naturally gluten-free—always check product labels to avoid contamination.

Which wine pairs well?

A crisp Sauvignon Blanc or a light citrusy IPA complements the creamy sauce and the seafood’s natural sweetness.

Creamy Cajun Seafood Pasta

Tender shrimp, scallops, and crab in a silky Cajun cream sauce with fettuccine. Satisfying and flavorful comfort meal.

Prep Time
20 mins
Time to Cook
25 mins
Overall Time
45 mins
Authored by Clara

Recipe Type One-Pot Meals

Skill Level Required Medium

Cuisine Type American (Cajun)

Recipe Output 4 Number of Portions

Dietary Needs None specified

The Ingredients You'll Need

Seafood

01 7 ounces large shrimp, peeled and deveined
02 7 ounces sea scallops, cleaned
03 5 ounces lump crab meat, shells removed

Pasta

01 12 ounces fettuccine or linguine

Vegetables & Aromatics

01 1 small yellow onion, finely chopped
02 2 garlic cloves, minced
03 1 red bell pepper, thinly sliced

Sauce

01 2 tablespoons unsalted butter
02 1 tablespoon olive oil
03 1 1/2 cups heavy cream
04 1/2 cup chicken or seafood stock
05 1/2 cup freshly grated Parmesan cheese

Seasonings

01 2 teaspoons Cajun seasoning
02 1/2 teaspoon smoked paprika
03 1/2 teaspoon sea salt, plus more to taste
04 1/4 teaspoon freshly ground black pepper
05 Pinch cayenne pepper, optional

Garnish

01 2 tablespoons fresh parsley, chopped
02 Lemon wedges

Step-by-Step Instructions

Step 01

Cook Pasta: Bring a large pot of salted water to a boil. Cook fettuccine or linguine until al dente according to package directions. Drain, reserving 1/2 cup pasta water, and set pasta aside.

Step 02

Season Seafood: Pat shrimp and scallops dry using paper towels. Toss seafood with 1 teaspoon Cajun seasoning and a pinch of sea salt.

Step 03

Sear Shrimp and Scallops: Heat 1 tablespoon butter with olive oil in a large skillet over medium-high heat. Add shrimp and scallops in a single layer and sear 1 to 2 minutes per side until just opaque. Remove from skillet and set aside.

Step 04

Sauté Aromatics: Add remaining tablespoon butter to the skillet. Add chopped onion, cooking for 2 minutes. Stir in minced garlic and sliced red bell pepper, and sauté an additional 3 to 4 minutes, until vegetables soften.

Step 05

Deglaze and Season: Stir in remaining Cajun seasoning, smoked paprika, and cayenne pepper. Pour in chicken or seafood stock, scraping up any brown bits from the pan.

Step 06

Prepare Sauce: Reduce heat to medium. Add heavy cream and bring to a gentle simmer. Stir in Parmesan cheese until melted and sauce has thickened slightly, about 3 to 4 minutes.

Step 07

Combine Seafood: Gently fold in lump crab meat, seared shrimp, and scallops. Simmer for 2 to 3 minutes, until seafood is heated through.

Step 08

Finish Pasta: Add cooked pasta to the skillet, tossing thoroughly to coat with the sauce. Pour in reserved pasta water as needed for desired sauce consistency.

Step 09

Season and Serve: Adjust seasoning with additional salt and freshly ground black pepper to taste. Serve immediately, garnished with chopped parsley and fresh lemon wedges.

Tools You'll Need

  • Large pot
  • Large skillet
  • Slotted spoon
  • Chef’s knife
  • Cutting board

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains shellfish, dairy, and gluten from pasta.
  • Parmesan cheese may contain animal rennet.
  • Check all labels for potential cross-contamination if allergic.

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 620
  • Fats: 28 grams
  • Carbohydrates: 59 grams
  • Proteins: 37 grams