Making Ricotta Beef Stuffed Shells is a simple process that yields delicious results. Follow these steps to create this amazing dish:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Cook the Pasta: Boil the pasta shells according to package instructions until al dente. Drain and set aside to cool.
3. Prepare the Filling: In a large skillet, cook the ground beef over medium heat until browned. Drain excess fat. Add minced garlic, oregano, basil, salt, and pepper, stirring until fragrant.
4. Mix the Cheese Filling: In a bowl, combine ricotta cheese, half of the mozzarella cheese, Parmesan cheese, and the egg. Mix well until smooth.
5. Stuff the Shells: Spoon about 2 tablespoons of the cheese mixture into each cooked pasta shell, then place them in a greased baking dish.
6. Add Marinara Sauce: Pour half of the marinara sauce over the stuffed shells, ensuring they are well coated.
7. Top with Cheese: Sprinkle the remaining mozzarella cheese over the top of the shells.
8. Bake: Cover the baking dish with foil and bake for 25 minutes. Remove the foil and bake for an additional 15 minutes, or until the cheese is bubbly and golden.
9. Garnish: Once out of the oven, let the dish cool for a few minutes. Garnish with fresh chopped parsley before serving.

These steps will guide you through creating these incredible Ricotta Beef Stuffed Shells effortlessly.