Creating Stuffed Italian Meatloaf is straightforward when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and prepare a baking sheet by lining it with parchment paper.

2. Mix Ingredients: In a large bowl, combine the ground beef, breadcrumbs, grated Parmesan cheese, beaten egg, minced garlic, chopped parsley, basil, Italian seasoning, salt, and pepper. If you enjoy them, add diced onion and roasted red bell peppers for extra flavor.

3. Form the Meat Mixture: Using your hands, mix the ingredients until combined but do not overmix, as this can make the meatloaf tough.

4. Layer the Cheese: On a large sheet of plastic wrap, spread the meat mixture into a rectangle, about 1-inch thick. Create a well in the center, leaving about an inch around the edges to hold in the cheese.

5. Add Cheese: Sprinkle shredded mozzarella cheese inside the well. Heat the cheese slightly to make it easier to work with, if desired.

6. Roll it Up: Carefully lift the edges of the plastic wrap to roll the meatloaf over the cheese, sealing it tightly. Ensure that no cheese escapes from the sides.

7. Shape and Place: Shape the rolled meatloaf into a loaf shape and place it seam-side down on the lined baking sheet.

8. Add Marinara Sauce: Pour half of the marinara sauce over the top of the meatloaf, spreading it evenly with a spoon.

9. Bake: Place the meatloaf in the preheated oven. Bake for 45-50 minutes or until the internal temperature reaches 160°F (70°C).

10. Rest: Once done, take the meatloaf from the oven and let it rest for 10-15 minutes before slicing. This helps retain the juices.

11. Serve with More Sauce: Drizzle the remaining marinara sauce over the sliced meatloaf when serving for added flavor.

By following these straightforward steps, you can craft a stunning Stuffed Italian Meatloaf that will impress everyone at the table!