In a Dutch oven, add 1 pound ground beef. Cook on stove top or with 30 coals underneath the oven until cooked through. Drain grease.
Then add, 1 can soup, ½ cup ketchup, ⅛ cup mustard, ½ chopped onion, 1 can tomato sauce, and 2 tablespoons Worcestershire sauce. Mix to combine.
If using coals, remove enough coals from underneath the oven to achieve a simmer. If using an oven preheat to 350℉.
Cover with lid and simmer for 30 minutes, stirring occasionally to prevent burning.
Serve on buns.