Directions

1. Coat grill rack with nonstick cooking spray. Preheat grill to high (400ÂF to 450ÂF). In a large bowl combine ground beef and 1/4 cup of the hoisin sauce; mix well. Divide beef mixture into 4 portions; shape portions into patties 1/2-inch thick. Season with salt and pepper to taste.
2. Place patties and pineapple slices on grill. Grill patties 6 to 8 minutes per side for medium (155ÂF), or to desired doneness. Grill pineapple 4 to 5 minutes per side or until tender. Brush 1 tablespoon hoisin sauce over each patty during last minute of grilling. Remove pineapple and burger patties from grill. Cover loosely to keep warm; let stand 5 minutes.
3. Meanwhile, if desired, place Canadian bacon on grill; grill 1 to 1 1/2 minutes per side. Remove from grill.
4. Place 1 pineapple slice, 1 burger, 1 Canadian bacon slice (if desired) and 2 tablespoons relish on the bottom half of each roll. Top with lettuce, onion and mayonnaise (if desired). Serve immediately.