PREPARATION:
- Combine beef, onions, Worcestershire and pepper in large bowl. Shape into six 1/2-inch-thick patties.
- Combine preserves and barbecue sauce in small saucepan. Bring to a boil over medium heat, stirring often.
- Spray grid with nonstick cooking spray. Prepare grill for indirect cooking. Place patties on ggrid over medium coals. Grill, covered, 8 to 10 minutes (or, uncovered, 13 to 15 minutes) to medium doneness (160°F), turning and brushing often with sauce. Place pineapple on grid; grill 1 minute or until browned, turning once.
- To serve, place patties on buns with pineapple.
