Step 1

Preheat a charcoal or gas grill to medium heat. Divide each patty in half and reshape each into a patty. On top of 4 patties, put one-fourth of the chopped bacon and one-fourth of the diced Gouda cheese.

Step 2

Top each with a second patty and press the sides together tightly. Grill until internal temperature reaches 160 degrees.

Step 3

Slice onion and place on grill for 3 to 4 minutes until grill marks form, turning once.

Step 4

Top grilled burger with slice of cheese and grilled onions. Serve each on onion roll with lettuce leaf.