1 lb. ground beef
1 onion, chopped
Salt
Pepper
1 can green beans
1 can tomato soup
6 med. potatoes
1 egg, slightly beaten
1/2 c. warm milk

Preheat oven to 375 degrees. Lightly grease a 9 x 13 inch baking dish. Cook potatoes, drain and mash. To potatoes, add egg and milk and mix well. Brown ground beef and onion and drain. Stir in green beans and soup. Pour into casserole. Top with potatoes. Bake for 30 minutes.