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Cajun Shrimp Pasta

This Cajun Shrimp Pasta is sweet, spicy, and so creamy! Penne pasta, tender-crisp veggies, and juicy shrimp are tossed with a homemade Cajun seasoning and coated in a rich sauce.
Prep Time20 mins
Cook Time20 mins
Total Time40 mins
Course: Dinner, Pasta
Cuisine: American, Cajun
Keyword: creamy, parmesan cheese, shrimp
Servings: 8 people
Calories: 452kcal
Author: Jennifer Debth


Cajun Seasoning

  • 2 teaspoons garlic powder
  • 2 teaspoons paprika
  • 2 teaspoons salt
  • 1 teaspoon onion powder
  • 1 teaspoon cayenne pepper omit or reduce if you don’t like spice
  • 1 teaspoon dried oregano
  • 1 teaspoon

    dried thyme

  • 1/2 teaspoon red pepper flakes omit or reduce if you don’t like spice
  • 1/4 teaspoon ground black pepper

Cajun Shrimp Pasta

  • 1/4 cup unsalted butter
  • 1/2 yellow onion diced
  • 1 green bell pepper diced
  • 1 red bell pepper diced
  • 1 orange bell pepper diced
  • 1 (8 oz) package baby Bella mushrooms diced
  • 4 cloves garlic minced or pressed
  • 2 cups half and half plus more for thinning out the sauce, if desired
  • 1/2 cup finely grated parmesan cheese
  • 16 oz large raw shrimp peeled and deveined with tails taken off
  • 1 pound penne pasta cooked al denté according to package directions
  • Cilantro and green onions optional as garnish


Cajun Seasoning

  • Place garlic powder, paprika, salt, onion powder, cayenne, oregano, thyme, red pepper flakes, and pepper in a bowl and whisk to combine.
  • Set aside.
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Cajun Shrimp Pasta

  • Melt butter in a large straight edged sauté pan over medium heat.
  • Stir in onions, peppers, mushrooms, garlic, and about half the cajun seasoning.
  • Cook until the peppers are tender-crisp, about 5 minutes. 

  • Add half-and-half, parmesan, and remaining cajun seasoning.
  • Bring to a simmer, add in shrimp, then simmer for 3-5 minutes or until shrimp is cooked.
  • Toss with cooked pasta.
  • Remove from heat and let sit for 10 minutes if you want the sauce to thicken.
  • Re-season and thin with more half and half, if necessary, then serve and enjoy!
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This is SPICY written as is. If you’re more sensitive to heat, either omit the cayenne and red pepper flakes or start with 1/4 teaspoon cayenne pepper and 1/4 teaspoon red pepper flakes and add more as desired.


Serving: 1person | Calories: 452kcal | Carbohydrates: 51g | Protein: 25g | Fat: 16g | Saturated Fat: 9g | Cholesterol: 185mg | Sodium: 1158mg | Potassium: 513mg | Fiber: 4g | Sugar: 4g | Vitamin A: 1814IU | Vitamin C: 54mg | Calcium: 251mg | Iron: 3mg