2 c. ricotta
3 c. shredded mozzarella
1 c. Parmesan cheese
1 lb. ground beef, browned
5 c. tomato sauce
16 oz. pkg. broad egg noodles
1 egg

Heat sauce and add cooked ground beef. In large mixing bowl, mix ricotta, 2 cups mozzarella, and Parmesan and egg; blend until well mixed. Follow directions on package of noodles, then drain and add to mixing bowl with cheeses. Mix well. Cover bottom of lasagna pan with thin layer of sauce. Layer half of noodle mixture in pan, then layer of sauce, last of the noodle mixture and more sauce. Top with one cup of mozzarella and bake in a preheated 350 degree oven for 30 minutes.