For a richer flavor, use a blend of ground beef and ground pork. If you prefer a creamier sauce, add a tablespoon of cream cheese or sour cream after broiling. Feel free to customize the seasonings to your liking. A pinch of red pepper flakes can add a touch of heat. Other cheeses like Gruyere, Monterey Jack, or a cheddar blend can be substituted. Adjust the amount according to your preference.