SHRIMP AND PEPPER FILLING
SHRIMP FILLING
Heat a large pan over medium heat.
Add olive oil, butter, diced bell peppers, shrimp, chili powder, salt, paprika, garlic powder, onion powder, oregano, and cayenne powder.
Mix together and saute for 7 to 9 minutes until the shrimp is cooked and the peppers have seared and softened.
Remove the shrimp and pepper filling from the pan and to the same pan, we will make the sauce.
CAJUN ALFREDO SAUCE
In a saucepan over medium heat, melt down the butter with the garlic. Saute for a minute or two.
Add the heavy cream, cajun seasoning, dried basil, salt, and black pepper. Whisk together and bring to a simmer for 5 to 6 minutes to reduce and thicken.
Add the parmesan, cream cheese, and a small squeeze of lemon juice. Whisk again until the sauce is smooth and thick.
Take off the heat, add the chopped parsley, mix again, and set aside.
COOK PASTA AND ASSEMBLE
Heat a large pot of water to a boil. Once it comes to a boil, generously salt your water. Then drop the pasta shells in and cook according to package directions to al dente. Drain and dry the shells before filling.
Preheat oven to 350°F.
To the bottom of a large oven-safe baking dish, add about 1 cup of the cajun alfredo sauce to cover the bottom.
Fill each jumbo shell with shrimp filling and arrange in rows in a large oven-safe baking dish.
Pour the remaining cajun alfredo sauce on top of the shells, adding as little or as much sauce as you'd like. I suggest not filling it with sauce to the top. That way the pasta shells can crisp up in the oven.
Sprinkle the top with cheese, cover the dish with foil, and pop in the oven to bake for 25 minutes.
Uncover, turn the oven setting to broil, and cook for another 3 to 4 minutes until the top is golden brown and crispy. Monitor closely as it can burn quickly.
Take out of the oven and garnish with parsley, red pepper flakes, and more parmesan if desired.