Arrange pineapple and ham slices on grill rack coated with cooking spray. Grill ham 1 minute, turning once. Remove ham from grill. Grill pineapple 9 minutes, turning once. Remove from grill; coarsely chop pineapple. Spread sauce evenly over crust, leaving a 1/2-inch border; top evenly with cheese. Arrange pineapple and ham over cheese. Place pizza on grill rack coated with cooking spray; grill 7 minutes or until cheese melts. Cut into 8 slices.