1 1/2 lb. hamburger
1/2 green pepper
1 med. onion
1 can string beans
1 can tomato soup

Brown hamburger with green pepper and onion. Drain off fat and put in casserole dish. Partially drain string beans and lay on top of the hamburger mixture. Pour tomato soup over all. Bake for 30 minutes at 375 degrees. Then add mashed potatoes over the top and bake uncovered until potatoes are baked and lightly browned on top.