This is one of my most treasured recipes, it came from a friend who worked as a manager at a community restaurant years ago. The meat mixture is made from ground beef, onion, and ketchup, a bit of vinegar and sugar, and the secret ingredient being chili powder. Choose any type of bun you wish, then slap on some of this great tasting meat. This recipe serves 5 people with about 3/4 cup meat mixture per person. The recipe can easily be doubled.