1 lb. Mozzarella cheese, grated
2 lb. Ricotta cheese
1 lb. ziti macaroni

Cook ziti accordingly and drain. Cover the bottom of a 13x9x2 pan with sauce. Place a layer of cooked ziti on top of sauce (about half) by spoonfuls, on top of ziti. Add Ricotta cheese. Repeat layers of sauce, ziti, Ricotta and Mozzarella, ending with top sauce. Sprinkle with Parmesan cheese. Bake at 350 degrees for 30 to 40 minutes.