Hearty Cheeseburger

Directions

1. 1
   Preheat grill to medium-high heat.
2. 2
   Mix 1/4 cup of the barbecue sauce and the relish until well blended; set aside.
3. 3
   Shape meat into 6 (1/4-inch-thick) patties.
4. 4
   Grill or broil burgers and onion slices 7 to 9 min.
5. 5
   on each side or until burgers are cooked through and onion slices are crisp-tender, brushing occasionally with the remaining 1/4 cup barbecue sauce during the last 2 min.
6. 6
   of the grilling time.
7. 7
   Top burgers with Singles; continue grilling until Singles begin to melt.
8. 8
   Cover bottom halves of rolls with lettuce; top with cheeseburgers, onion, tomato, relish mixture and tops of rolls.