3 c. spaghetti sauce
1 lb. Ricotta cheese
3 c. Mozzarella cheese
1 c. Parmesan cheese
1 lb. cooked sausage, optional

Put 1 1/2 cups spaghetti sauce in baking dish. Then add:

1/2 lb. cooked ziti
1 lb. Ricotta cheese
1 1/2 c. Mozzarella cheese

Cover with 1 1/2 cups spaghetti sauce, 1 cup parmesan cheese and top with 1 1/2 cups Mozzarella cheese. Bake 20-30 minutes at 350 degrees.