1. Combine first 5 ingredients and 2 tablespoons salsa. Divide mixture into 4 equal portions, shaping each into a 1/2-inch-thick patty.

2. Heat a large skillet or grill pan over medium-high heat. Coat pan with cooking spray. Add patties to pan; cook 5 minutes on each side or until desired degree of doneness. Top each patty with 1 cheese slice; cook 1 minute or until cheese melts.

3. Place 1 lettuce leaf on bottom half of each bun; top with 2 tomato slices, 1 patty, 1 1/2 teaspoons salsa, and 1 bun top.