1 lb. cooked ground beef, browned with 1/2 c. chopped onion, drained well
1 (16 oz.) can green beans, drained
1 (10 3/4 oz.) can condensed tomato soup with 1/4 c. water
Leftover mashed potatoes
1 beaten egg
1/2 c. (2 oz.) shredded American cheese

Stir into ground beef, the beans, soup, water, 1/2 teaspoon salt, 1/8 teaspoon pepper. Place in square baking pan. Add egg to potatoes and beat until blended and fluffy. Spoon over meat mixture. Sprinkle with cheese. Bake uncovered at 350 degrees for 25-30 minutes until heated through.

When beef is one sale, I brown lots of it with onion and freeze in cookie sheets. Place in Ziploc bags to use when needed.