1/4 lb. Mozzarella cheese, diced
1 egg
3/4 tsp. salt
1 lb. ricotta cheese
1/2 c. grated Parmesan cheese
1 lb. ziti macaroni
6 c. tomato sauce

Mix first 5 ingredients. Cook ziti and drain. Preheat oven to 350 degrees. In a baking dish layer sauce, ziti and filling (starting and ending with sauce). Bake at 350 degrees for 40 minutes. Can be prepared ahead and frozen before baking.