Hobo'S Supper
["3 to 4 slices large onion (1/3-inch thick)", "3 to 4 slices large potato (1/3-inch thick)", "salt", "pepper", "1 large hamburger patty"]
["Season onions and potatoes with salt and pepper.", "Place onions and potatoes on a square foot greased foil.", "Lay hamburger patty on top.", "Season hamburger.", "Seal foil tightly and cook in 325\u00b0 oven for at least 1 1/2 hours.", "Yield: individual serving."]
["onion", "potato", "salt", "pepper", "patty"]