Creamy Cajun Shrimp Pasta Recipe for Quick Weeknight Dinner

Get ready for a rich, spicy, and comforting pasta — my Creamy Cajun Shrimp Pasta is ready in under 25 minutes, simple to prepare, and perfect for weeknights or a cozy date night.

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This creamy shrimp pasta is packed with bold Cajun flavors and a silky sauce that coats rigatoni perfectly. It’s a new weeknight staple the whole family will love.

Ingredients

Argentinian (large) shrimp, peeled and patted dry
Juice of 1 lemon
Olive oil
Unsalted butter
Tomato sauce
Heavy whipping cream
Fresh parsley, chopped
Rigatoni pasta
Salt and black pepper
Reserved pasta water
Corn starch (for coating shrimp)
Sugar (a pinch, optional)
Seasonings: Cajun spice, garlic powder, red paprika, smoked paprika, red pepper flakes, dried oregano
Parmesan cheese (optional)

See recipe card for exact quantities.

Instructions

Step 1: Peel, wash, and dry the shrimp.

Step 2: Marinate the shrimp with lemon, oil and spices, then coat lightly in corn starch.

Step 3: Sear shrimp 1–2 minutes per side until pink; remove and set aside.

Step 4: Sauté vegetables in butter until softened and lightly golden.

Step 5: Add tomato sauce, cream and the remaining seasonings; stir in al dente rigatoni and a splash of reserved pasta water.

Step 6: Return shrimp to the skillet, toss to combine, and garnish with Parmesan, parsley and black pepper before serving.

Prepare the Shrimp:

Peel and rinse shrimp, then pat dry. If using frozen shrimp, thaw in cold water for 5–10 minutes and separate as they thaw.
Toss shrimp with lemon juice, olive oil, Cajun seasoning, garlic powder, red and smoked paprika, and dried oregano. Coat lightly with corn starch.

Cook the Shrimp:

Heat a large skillet over medium-high heat with a drizzle of oil.
Sear shrimp 1–2 minutes per side until pink and opaque. Remove and keep warm.

Sauté the Vegetables:

In the same skillet, melt butter over medium heat.
Add diced jalapeño, red bell pepper, and yellow onion. Sauté 7–10 minutes until soft and fragrant.

Prepare the Sauce:

Pour in the tomato sauce and cook 2–3 minutes to combine with the vegetables.
Stir in heavy cream and the remaining seasonings. Simmer gently.
Return the cooked shrimp to the pan, add chopped parsley and grated Parmesan if you like. Let the sauce simmer 3–5 minutes to meld flavors.

Cook the Pasta:

Cook rigatoni in a large pot of salted boiling water until al dente. Reserve ¼–½ cup pasta water before draining.

Combine and Serve:

Add drained pasta to the skillet with sauce and a splash of reserved pasta water. Toss and simmer a few minutes until the sauce coats the pasta.
Adjust seasoning with salt and pepper to taste.

Garnish and Serve:

Serve hot, topped with extra grated Parmesan, chopped parsley and a crack of black pepper.

Substitutions

Shrimp: Swap for diced chicken breast, Cajun sausage, andouille, or firm tofu for a vegetarian option.

Lemon Juice: Use lime juice or a tablespoon of white wine vinegar.

Olive Oil: Any neutral oil such as canola or vegetable oil works fine.

Cajun Seasoning: Use Creole seasoning or a mix of chili powder, cumin and cayenne.

Heavy Cream: Substitute half-and-half, coconut milk for dairy-free, or milk thickened with a tablespoon of flour.

Pasta: Penne, fusilli or any short pasta will work in place of rigatoni.

Feel free to mix and match based on what you have available.

Equipment

Knife

Cutting board

Large skillet

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat on the stove with a splash of water or broth over low heat, stirring until warmed through. For longer storage, freeze in a freezer-safe container for up to 2 months; thaw in the fridge before reheating.

3 Top Tips for Success

Use quality ingredients: Fresh large shrimp, good Cajun seasoning, real butter and heavy cream make a noticeable difference.
Cook pasta al dente: It will finish cooking in the sauce and stay firm instead of mushy.
Reserve pasta water: A splash of starchy pasta water helps the sauce cling to the pasta and creates a silky texture.

FAQ’s

What to pair with Cajun pasta?

Pair it with a crisp green salad, garlic bread, or roasted vegetables. For drinks, a cold beer, iced tea, or a chilled white wine complement the spicy, creamy flavors.

Is Cajun shrimp healthy for weight loss?

Cajun shrimp can fit into a weight-loss plan when prepared with minimal oil and served with vegetables or a salad, as shrimp are high in protein and relatively low in calories.

Looking for other recipes like this? Try these:

Easy Spicy Carbonara Ramen (10-Minute Recipe)
The Best Street Corn Pasta Salad with Chicken
Creamy White Bolognese Sauce (with Rigatoni)
Creamy Garlic Parmesan Chicken Ramen (Easy 20-Minute Recipe)

Pairing

Favorite desserts to serve after this Creamy Cajun Shrimp Pasta:

Fudgy Reese’s Cup Brownies
Salted Brown Butter Maple Syrup
No-Bake Reese’s Peanut Butter Chocolate Bars
How to Make the Viral Dot Cakes