1 (12 oz.) pkg. jumbo macaroni shells
2 (9 oz.) pkgs. frozen creamed spinach in cooking pouch
1 (15 oz.) container Ricotta cheese
8 oz. Mozzarella cheese, shredded
1 tsp. salt
1/4 tsp. pepper
1/2 lb. ground beef
32 oz. jar spaghetti sauce

Cook shells; drain. Cook creamed spinach. Pour in large bowl and cool. Stir in Ricotta cheese, Mozzarella cheese, salt and pepper. Stuff each shell with a tablespoon of mixture. Cook ground beef until browned. Stir in spaghetti sauce; pour over shells. Bake at 350 degrees for 30 minutes or until bubbly.