Directions:

In a large bowl, combine ground beef, garlic, salt and pepper. Shape meat into four 3/4 inch patties, shaping to fit the bread. Place patties on grill directly over heat source. Grill for 14-18 minutes for desired doneness, turning once.

Brush both sides of bread with oil. Grill for 1-2 minutes or until lightly toasted. Place a lettuce leaf and a burger on bread slices; sprinkle with Parmesan cheese and top with remaining bread slices.