1 lb. hamburger
1 can tomato soup
1 can green beans with juice
6 potatoes, mashed
1 egg
Mushrooms (optional)

Fry hamburger in skillet until browned through; drain grease and put into a shallow baking dish 913 x 9 inch will do). Add undiluted tomato soup and green beans with juice (and mushrooms if you want). Mix well, adding salt and pepper to taste.

In mixing bowl, whip mashed potatoes with egg. Cover the hamburger mixture with the whipped potatoes and bake in a 350 degree oven 30-35 minutes or until top of potatoes are brown. Let stand at least 5 minutes before serving.