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Creamy Cajun Shrimp Pasta

nibbleboard.com/recipes/cajun-shrimp-pasta

Prep:10 min
Cook:15 min
Total:25 min
Servings:4

Ingredients

Ingredients

  • 12 oz penne pasta
  • 1 lb large shrimp, peeled and deveined
  • 1 tbsp Cajun seasoning (plus more to taste)
  • 2 tbsp olive oil, divided
  • 1 tbsp unsalted butter
  • 3 garlic cloves, minced
  • 1 red bell pepper, diced
  • 1 cup heavy cream
  • ½ cup freshly grated Parmesan, plus more for serving

Seasoning

  • 1 tbsp kosher salt (for pasta water)
  • ½ tsp black pepper

Garnish

  • 2 tbsp fresh parsley, chopped (optional)
  • 1 tbsp chives, thinly sliced (optional)

Instructions

  1. Bring a large pot of salted water to a boil. Cook penne according to package directions until al dente. Reserve 1 cup of pasta water before draining.
  2. Toss shrimp with Cajun seasoning and 1 tablespoon olive oil in a bowl until evenly coated.
  3. Heat remaining 1 tablespoon olive oil in a large skillet over medium-high heat until shimmering. Add shrimp in a single layer and cook without moving until golden on the bottom, about 2 minutes per side.
  4. Transfer shrimp to a plate. Add butter to the same skillet and let it melt over medium heat.
  5. Add diced bell pepper and cook until just softened, about 3 minutes. Add garlic and cook until fragrant, about 30 seconds.
  6. Pour in heavy cream and scrape the bottom of the skillet to release any browned bits. Let the sauce bubble gently and thicken slightly, about 2 minutes.
  7. Reduce heat to low and stir in grated Parmesan until the sauce is smooth and thick. Season with black pepper and extra Cajun seasoning to taste.
  8. Add drained pasta and shrimp back to the skillet. Toss everything together, adding reserved pasta water one tablespoon at a time if the sauce needs loosening.
  9. Serve immediately, topped with fresh parsley, chives, and extra Parmesan.

Nutrition per Serving

703Calories
46gProtein
35gCarbs
43gFat

Chef Tips

  • I've found that patting the shrimp bone-dry with paper towels before seasoning is the difference between a gorgeous sear and sad, steamed shrimp. Take the extra 30 seconds.
  • Don't skip reserving pasta water — the starch in it makes the cream sauce silky and helps it cling to every piece of penne.
  • After trying both ways, I always cook the shrimp first and pull them out. If you leave them in the sauce too long they turn rubbery.
  • No Cajun seasoning? Mix equal parts paprika, garlic powder, onion powder, and cayenne with a pinch of oregano and thyme.
  • Leftovers keep well for 3 days in the fridge — reheat gently in a skillet with a splash of cream or milk to loosen the sauce back up.

Storage

Store leftovers in an airtight container in the fridge for up to 3 days. The sauce thickens as it cools — this is normal.

© 2026 Nibbleboard. Nutritional data computed from USDA ingredient databases.