All-American Hamburger
Ingredients:
- 2 tablespoons diced onion
- 2 tablespoons chili sauce
- 2 teaspoons Worcestershire sauce
- 2 teaspoons prepared mustard
- 1 pound ground beef
- 4 slices American or cheddar cheese, halved diagonally
- 2 slices Swiss cheese, halved diagonally
- 4 hamburger buns, split and toasted
- Lettuce leaves, sliced tomato and onion, cooked bacon, ketchup and mustard, optional