1 lb. ground beef
1 medium onion, chopped
1 green pepper, diced
1 6 oz. tomato sauce
3 c. mashed potatoes
1/3 lb. grated cheese
salt and pepper to taste

Brown beef and drain. Add onion, green pepper, salt and pepper. Stir sauce. Pour into casserole dish. Combine potatoes and cheese, spoon over sauce.

Bake at 350°F for 15 to 20 minutes.