1. Preheat oven to 375 degrees. Cook ziti occurring to package; drain. Cook sauce with meatballs in pan ziti was in. 2. Wait until meatballs and sauce get hot. Add ziti in with sauce and meatballs; mix. 3. Spray a 1 1 2 quart cassorole dish with non-stick cooking spray. Make a layer of the meatball mixture on bottom of dish. . Layer on top of it the cheese; repeat. Put remaining cheese and some breadcrumbs (optional) on top. Bake in oven for 15-20 minutes.