Preheat the Oven: Start by preheating your oven to 375°F (190°C).
Cook the Pasta: Bring a large pot of salted water to a boil. Add the jumbo pasta shells and cook until al dente according to the package instructions. Drain and set aside.
Prepare the Filling: In a large bowl, combine the ricotta cheese, 1 1/2 cups of mozzarella cheese, Parmesan cheese, egg, dried basil, dried oregano, garlic powder, salt, and pepper. Mix well until all ingredients are thoroughly incorporated.
Stuff the Shells: Carefully spoon the ricotta mixture into each cooked pasta shell, filling them generously.
Assemble the Dish: Spread 1 cup of marinara sauce evenly on the bottom of a 9×13-inch baking dish. Arrange the stuffed shells in the dish, then top with the remaining marinara sauce.
Add Cheese: Sprinkle the remaining 1/2 cup of mozzarella cheese over the top of the shells.
Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes. Remove the foil and bake for an additional 10 minutes, or until the cheese is melted and bubbly.
Garnish and Serve: Remove from the oven and let cool slightly before serving. Garnish with fresh parsley if desired.
Enjoy the delicious flavors of Italy with these comforting and satisfying Italian Stuffed Shells!
