1. Spread 1 side of each bread slice light with mustard. Layer ham and cheese between the mustard-spread sides of the bread slices. In a shallow bowl or ie plate beat together milk and egg white.
2. Coat an unehated nonstick cooking spray. Preheat griddle over medium heat. Melt butter on griddle. Dip each sandwhich in milk mixture, turning to coat. Place in skillet; cook for 1-2 min. per side or until golden adn cheese is melted. If desired, sprinkle with owdered sugar and serve with preserves