Creamy Cajun Salmon Pasta with Lemon and Garlic

If you’re searching for an easy weeknight dinner, this Cajun Salmon Pasta recipe is a perfect choice. Flaky pan-seared salmon sits atop penne tossed in a rich, creamy tomato and parmesan sauce, flavored with diced bell peppers, onions, garlic, and fragrant Cajun seasoning. It’s bold, balanced, and comes together quickly—ideal for busy evenings.

This creamy Cajun pasta can be made in about 30 minutes. Serve it with a slice of crusty bread or a simple green salad for a complete, satisfying meal the whole family will enjoy.

This Cajun Salmon Pasta is a standout seafood pasta — the salmon is pan-fried until tender and slightly crisp on the outside, while the sauce is creamy, tomato-forward, and lightly spicy. Heavy cream, lemon, and parmesan round out the sauce, balancing heat with richness for a deliciously comforting bite without overwhelming spice.

The recipe is straightforward and adaptable. If you prefer shrimp, chicken, or a different pasta shape, the method remains the same and yields equally delicious results.

Ingredient Notes

• Salmon fillets: Use fresh or fully thawed salmon. Cooking with the skin on helps keep the fillet intact while searing; remove after cooking if preferred.
• Butter & Olive oil: A combination of butter and oil gives great flavor and helps prevent burning when pan-frying the fish.
• Cajun seasoning: Use a store-bought blend or make your own with paprika, cayenne, garlic powder, black pepper, and oregano. Adjust the amount to control spice level.
• Aromatics: Yellow onion and garlic build the base of the sauce; dice them small for an even texture.
• Bell peppers: Red or green peppers add sweetness and texture; dice them to match the onion.
• Tomato paste: Intensifies tomato flavor and gives the sauce depth.
• Heavy cream: Creates the silky, luxurious texture—substitute a lighter cream or a non-dairy alternative if needed.
• Lemon: Both juice and zest brighten the sauce and cut through richness.
• Fresh spinach: Adds color and nutrients; it wilts into the hot sauce.
• Parmesan: Freshly grated parmesan melts into the sauce and enhances savory flavor.
• Reserved pasta water: A splash helps emulsify and thin the sauce to the perfect consistency.
• Penne pasta: Short pasta like penne holds the sauce well—substitute with other shapes if preferred.
• Salt & pepper: Season to taste and adjust if your cajun seasoning contains salt.
• Parsley: Fresh chopped parsley brightens the finished dish as a garnish.

Tips

• Make your own Cajun blend if you want full control over heat and salt. A basic mix of smoked paprika, garlic powder, onion powder, cayenne, black pepper, and dried oregano works well.
• Control the spice: Reduce cajun seasoning by half for a milder sauce, or omit the cayenne if sensitive to heat.
• Check salmon doneness: Gently press the thickest part of the fillet—if it flakes easily and is opaque, it’s done. An internal temperature of 145°F (63°C) is the USDA recommendation.
• Hot pan for a good sear: Make sure the skillet is fully heated before adding salmon to develop a flavorful crust.
• Save sauce for leftovers: If you know you’ll have leftovers, reserve some sauce separately and reheat with freshly cooked pasta to maintain texture.

How to make Cajun Salmon Pasta

Cook Penne Pasta

Bring a large pot of salted water to a boil and cook penne according to package instructions until al dente. Reserve 1 cup of pasta cooking water before draining.

Season & Sauté Salmon

Pat salmon dry with paper towels. Season both sides with salt, black pepper, and 1 tablespoon of Cajun seasoning. In a large skillet over medium-high heat, melt 2 tablespoons butter with 1 tablespoon olive oil. When the pan is hot, place salmon fillets skin-side down and sear for 4–5 minutes, then flip and cook another 4–6 minutes until cooked through. Remove salmon from the pan and set aside to rest.

Make the Creamy Cajun Sauce

In the same skillet, add a little more oil if needed and sauté the diced onion and bell peppers for about 4 minutes until softened. Add the garlic and cook 1–2 minutes until fragrant. Stir in the tomato paste and cook 3–4 minutes to deepen the flavor. Lower heat and add the remaining 1–2 tablespoons of Cajun seasoning (adjust to taste) and 1½ cups heavy cream. Stir and simmer gently until the sauce thickens, about 4–5 minutes.

Add Veggies and Cheese

Remove the pan from heat and stir in fresh spinach and 1 cup grated parmesan. The residual heat will wilt the spinach and melt the cheese into the sauce. Add lemon juice and zest, then stir in ½ cup reserved pasta water to thin the sauce; add more pasta water if you prefer a looser texture. Stir until the sauce is silky and combined.

Combine and Serve

Add the drained penne and the cooked salmon to the sauce, gently tossing so the pasta and fish are coated without breaking the fillets apart. Garnish with chopped parsley and additional parmesan if desired. Serve immediately while warm.

Variations

This recipe is versatile and easy to adapt. Try one of these variations to suit dietary needs or personal taste:

• Pasta swap: Use linguine, fettuccine, rigatoni, or a gluten-free pasta to change texture and mouthfeel.
• More vegetables: Add asparagus, broccoli, cherry tomatoes, or kale for extra color and nutrients.
• Different protein: Substitute shrimp, chicken, catfish, or tilapia if you don’t have salmon on hand.
• Dairy-free: Use full-fat coconut milk or a creamy plant-based alternative and omit parmesan, or use a dairy-free cheese substitute.
• Keto-friendly: Replace pasta with zucchini noodles or spaghetti squash for a low-carb option.

Recipe FAQs

More Pasta Recipes!

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• Rasta Pasta with Jerk Chicken
• Asiago Tortellini Alfredo
• Buffalo Chicken Pasta
• One Pot Casarecce Pasta with Sausage
• Pesto Shrimp Pasta with Sun-Dried Tomatoes

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