Creating Shrimp & Crab Pasta with Creamy Cajun Sauce is a seamless process when you follow these easy steps:

1. Cook the Pasta: In a large pot of salted boiling water, add the pasta and cook according to package instructions until al dente. Drain and set aside.

2. Sauté Vegetables: In a large skillet over medium heat, add olive oil. Once hot, add the chopped onion and sauté until translucent, about 3-4 minutes. Stir in minced garlic and cook for an additional minute.

3. Cook the Shrimp: Add the shrimp to the skillet. Cook until they turn pink, approximately 2-3 minutes per side. Remove shrimp from the skillet and set aside.

4. Make the Sauce: In the same skillet, pour in the chicken broth and heavy cream. Stir well to combine. Bring the mixture to a simmer.

5. Season the Sauce: Add Cajun seasoning and smoked paprika to the sauce, stirring continuously. Let it simmer for 5 minutes until the sauce thickens slightly.

6. Combine Seafood and Pasta: Add the cooked shrimp and lump crab meat to the sauce. Gently mix to coat the seafood with the sauce.

7. Add Pasta: Toss the cooked pasta into the skillet, mixing well to ensure that the pasta is evenly coated with the creamy sauce. Season with salt and pepper to taste.

8. Garnish and Serve: Remove from heat and serve hot, garnished with chopped parsley. Add grated Parmesan cheese on top if desired.