BBQ Cheeseburgers

Directions:

1. Preheat grill to medium heat.
2. Combine ground beef and onion in medium bowl, mixing lightly but thoroughly.
3. Shape into four 3/4-inch thick patties.
4. Place patties on grid. Grill, uncovered, 13 to 15 minutes to medium (160°F) doneness, until not pink in center and juices show no pink color, turning occasionally.
5. About 1 minute before burgers are done, brush with barbecue sauce; top with cheese.
6. Line bottom half of each roll with lettuce and tomato; top with burger.
7. Close sandwiches.