Heat oven to 350°F. Bake rolls as directed on bag. Cool completely, about 10 minutes.
Heat oven to broil. Cut rolls in half crosswise; place bottom halves on cookie sheet. Spread bottom halves each with 1 tablespoon of the salsa. Top with chicken slices and cheese.
Broil with tops about 4 inches from heat 1 to 1 1/2 minutes or until cheese is melted. Top with remaining roll halves. Serve with additional salsa.