Grilled Cheddar-Stuffed Hamburgers

Directions:

Preheat grill to medium-high heat. In a mixing bowl combine meat, onion, Worcestershire sauce, salt, and pepper until well mixed. Divide meat mixture into 4 equal portions and shape each into a ball. Make a deep hole in each ball and fill each with a quarter of the cheese. Enclose the cheese by folding the meat mixture around the cheese and flatten the burgers into 3/4-inch patties. Place the burgers on the grill and cook on each side for 5 to 7 minutes, or until hamburger has reach desired doneness. Serve burgers in hamburger buns with desired toppings.