Green Bean Hamburger Pie
["1 medium onion", "1 lb. hamburger", "1 can green beans", "1 can tomato soup", "5 medium potatoes", "1/2 c. milk", "1 egg"]
["Brown the onion in fat until done.", "Add beef, salt and pepper.", "Drain the green beans and mix with 1 can tomato soup.", "Add the meat mixture.", "Pour into 1 1/2-quart casserole.", "Cook potatoes until done.", "Mash potatoes with 1/2 cup milk and 1 egg.", "Spoon potatoes on top of meat.", "Bake at 350\u00b0 for 30 minutes."]
["onion", "hamburger", "green beans", "tomato soup", "potatoes", "milk", "egg"]