Creamy Beef and Shells Delight: A Comforting Pasta Dish

Cook the pasta: Start by boiling the pasta shells according to package instructions. Be sure to cook them al dente, as they will continue to cook in the oven. Drain and set aside.
Cook the beef: In a large skillet, heat the olive oil over medium heat. Add the ground beef, and cook until browned, breaking it apart as it cooks. Add the chopped onion and minced garlic and sauté for another 2-3 minutes, until the onion is softened. Season with oregano, basil, salt, and pepper.
Make the creamy sauce: In a separate saucepan, combine the heavy cream, beef broth, and cream cheese. Stir over medium heat until the cream cheese melts completely and the mixture becomes smooth. Add garlic powder and mix well.
Combine the beef and sauce: Pour the creamy sauce over the cooked beef mixture in the skillet, stirring to combine. Let it simmer for about 5 minutes to allow the flavors to meld. Add the sour cream, mozzarella cheese, and Parmesan cheese, stirring until the cheese is melted and the sauce becomes thick and creamy.
Stuff the shells: Preheat the oven to 375°F (190°C). Stuff each pasta shell with the creamy beef mixture, carefully placing the stuffed shells in a greased baking dish.
Assemble and bake: Pour any remaining creamy sauce over the stuffed shells, and top with a little extra mozzarella cheese. Cover the dish with aluminum foil and bake for 20-25 minutes, or until the cheese is bubbly and the shells are heated through.
Serve: Remove from the oven and let it cool for a few minutes before serving. Garnish with chopped parsley if desired, and serve with a side salad or garlic bread.
Serving and Storage Tips: