olive oil flavored cooking spray enough to coat mushroom
1/8 teaspoon table salt
1/8 teaspoon black pepper
4 medium mixed-grain hamburger buns
4 pieces jarred roasted red peppers drained water-packed
4 slices red onions
4 pieces lettuce
Steps:
Heat grill
In a small bowl combine basil mayonnaise and vinegar; set aside
Lightly coat both sides of mushroom caps with cooking spray; season with salt and pepper
Grill mushrooms over medium-hot coals about 6 minutes each side or until just soft to the touch
To serve split rolls and toast on grill Spread a heaping teaspoon of basil mixture on top and bottom halves of rolls Layer each bottom half with one red pepper mushroom onion slice and lettuce leaf; top with remaining half of roll and serve