Prepare the Meatballs: Combine ground beef (or a mix of beef and pork), breadcrumbs, grated Parmesan cheese, minced garlic, chopped parsley, egg, salt, and pepper. Form into meatballs and bake or pan-fry until browned.
Make the Sauce: In a saucepan, heat marinara sauce or your favorite tomato sauce. You can add extra garlic, Italian seasoning, and a pinch of sugar if desired.
Cook the Pasta: Boil your choice of pasta (penne, rigatoni, or spaghetti) until al dente, then drain.
Assemble the Casserole: In a baking dish, layer pasta, meatballs, sauce, and shredded mozzarella cheese. Repeat layers as needed.
Add Parmesan: Sprinkle a generous amount of grated Parmesan cheese on top for extra flavor.
Bake: Bake the casserole at 375°F (190°C) for about 25-30 minutes until the cheese is bubbly and golden.
Serve: Let it cool slightly, garnish with fresh basil or parsley, and enjoy your hearty Meatballs Parmesan Casserole!