Barbecued Hamburger
["1/2 c. chopped onion", "1/2 c. chopped green peppers", "1 Tbsp. cooking oil", "1 lb. hamburger meat", "2 tsp. prepared mustard", "1 c. catsup", "1/2 tsp. salt", "1/4 tsp. pepper"]
["Saute onions and green peppers in cooking oil for 3 minutes. Add hamburger and cook until red color disappears.", "Drain and add mustard, catsup, salt and pepper.", "Simmer for 10 minutes and serve in toasted, buttered buns with a thin slice of onion.", "Serves 8."]
["onion", "green peppers", "cooking oil", "hamburger", "mustard", "catsup", "salt", "pepper"]