Easy Supper
["1 onion", "1 lb. hamburger", "1 can kernel corn", "leftover mashed potatoes", "grated old cheese", "salt and pepper"]
["Brown hamburger, onions, salt and pepper.", "Place in bottom of casserole.", "Cover with drained corn.", "Cover with leftover mashed potatoes.", "Top with grated Cheddar cheese.", "Warm in oven at 350\u00b0 for 45 minutes."]
["onion", "hamburger", "kernel corn", "potatoes", "old cheese", "salt"]