Creating Easy Creamy Seafood Stuffed Shells can be enjoyable if you follow these straightforward steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Pasta: In a large pot, boil the pasta shells according to package instructions. Once cooked al dente, drain and set aside.
3. Make Filling: In a mixing bowl, combine ricotta cheese, mozzarella cheese, chopped shrimp, crab meat, grated Parmesan cheese, chopped parsley, minced garlic, salt, black pepper, and red pepper flakes. Mix until fully combined.
4. Stuff Shells: Carefully fill each cooked pasta shell with the seafood mixture, being generous with the filling.
5. Prepare Sauce: In a separate bowl, mix marinara sauce with heavy cream and Italian seasoning.
6. Layer in Baking Dish: Spread a thin layer of the cream sauce on the bottom of a baking dish. Arrange the stuffed shells in a single layer.
7. Add Sauce: Pour the remaining cream sauce over the stuffed shells, ensuring they are all coated.
8. Top with Cheese: Sprinkle additional mozzarella and Parmesan cheese on top for a golden, bubbly finish.
9. Cover and Bake: Cover the baking dish with aluminum foil and bake for 20 minutes. Remove the foil and bake for an additional 5-10 minutes, or until the cheese is melted and bubbly.
10. Garnish: Remove from the oven and garnish with extra parsley if desired. Let it cool for a few minutes before serving.

These steps will lead you to create this enchanting dish effortlessly!