1 c. water
1 c. elbow macaroni, uncooked
1 (15 oz.) jar spaghetti sauce
1 lb. ground beef, browned and drained
Mozzarella cheese, shredded

Mix all ingredients except cheese in a microwaveable casserole dish, cover, cook on High for 18 minutes. Stir. Sprinkle cheese and heat for 1 minute or until cheese is melted.