School Day Casserole
["1 lb. ground beef", "1 small onion, chopped", "1 c. cooked macaroni", "1 (No. 2) can tomatoes", "1 pkg. beef stew seasoning mix", "grated cheese"]
["Brown ground beef and onion.", "Add remaining ingredients except cheese.", "Pour into casserole dish and sprinkle cheese on top. Bake in a 375\u00b0 oven until bubbly, approximately 25 minutes."]
["ground beef", "onion", "macaroni", "tomatoes", "beef stew seasoning mix", "grated cheese"]