1 lb. hamburger, browned
Salt & pepper to taste
1 (16 oz.) can string beans
1 (8 oz.) or larger can tomato sauce

Brown hamburger in skillet and add salt and pepper, beans and tomato sauce. Let this get real hot and put in casserole dish. Add mashed potatoes to the top of the hamburger and bean mixture and brown in the oven at 375 degrees.