All-American Hamburgers

Ingredients

• 1 pound ground beef
• 2 tablespoons finely chopped onion
• 2 tablespoons chili sauce
• 2 teaspoons Worcestershire sauce
• 2 teaspoons prepared mustard
• 4 slices American cheese or cheddar cheese, halved diagonally
• 2 slices Swiss cheese, halved diagonally
• 4 hamburger buns, split and toasted
• Optional: Lettuce leaves, sliced tomato, sliced onion, cooked bacon strips, ketchup and mustard

Instructions

1. Combine first 5 ingredients, mixing lightly but thoroughly. Shape into 4 patties. Grill burgers, covered, on an oiled rack over medium direct heat until a thermometer reads 160° and juices run clear, about 6 minutes on each side.
2. During the last minute of cooking, top each patty with 2 triangles American cheese and 1 triangle Swiss cheese. Serve on buns. As desired, top with lettuce, tomato, onion, bacon, ketchup and mustard.