Easy to make and fun to eat Dump and Bake Meatball Casserole is always a dinner winner. It’s meaty, saucy, and cheesy perfection! Use a 9x13 baking dish.
Cook the pasta according to package directions, maybe 1 minute less. Drain and set aside.
To a large pot, add the defrosted meatballs, marinara sauce, water, cooked pasta, and Italian seasoning. Gently stir together and heat on low.
Prepare a 9x13 pan with cooking spray. Add the meatball and pasta mixture.
Bake covered for 35 minutes.
Uncover the dish and sprinkle the top with Mozzarella cheese and Pecorino Romano. Bake uncovered for an additional 10-15 minutes. Let sit for 10 minutes before serving.
Sprinkle over the casserole fresh parsley and parmesan cheese. Serve and enjoy!