Heat oven to 400ºF. For meatloaves, combine all ingredients in large bowl, mixing lightly but thoroughly. Using a muffin tin, press approximately 1/3 cup beef mixture into each of 12 medium muffin cups. Bake 15 to 20 minutes to medium (160°) doneness until not pink in center and juices show no pink color. Remove meatloaves from oven. Top each meatloaf with 1 tablespoon salsa and 1 tablespoon cheese. Return to oven; continue baking 3 minutes or until cheese is melted. Use narrow metal spatula or knife to loosen and then lift meatloaves from pan.