1 lb. ground beef
1/2 bottle ketchup (Heinz 14 oz. bottle)
1/2 green pepper, chopped
1 sm. to med. onion, chopped
1/2 tbsp. dry mustard or double of moist
1 tbsp. vinegar
1/2 tbsp. sugar

Brown meat, drain. Add onion and pepper. Add other ingredients and a little water if needed and simmer about 1 hour.

For large quantities use 5 pounds beef (at least 2 or 3 of which are ground round) and 4 times above quantities of other ingredients. This makes 2 3/4 quarts, enough for 36 generous sandwiches.