Hamburger Pie Casserole
["1 medium onion, chopped", "1 lb. ground beef", "salt and pepper", "1 can No. 2 green beans", "1 can (10 1/2 or 11 oz.) tomato soup", "cooked potatoes, mashed also"]
["Cook hamburg and onion until done with salt and pepper.", "Add drained beans and tomato soup.", "Pour into greased 1 1/2 -quart casserole.", "Add the mashed potatoes (which are made with milk and 1 beaten egg and whipped until light and fluffy).", "Spoon mounds of potatoes on top of meat mixture.", "Bake at 350\u00b0 for 30 minutes."]
["onion", "ground beef", "salt", "No", "tomato soup", "potatoes"]