On a work surface, lay out the ham slices & spread with mustard. Divide stuffing mixture evenly between ham slices. Top each with a turkey slice then divide the Swiss cheese between the 8 ‘cordon bleu’. Wrap each by laying one side over the other, securing with toothpicks. Carefully transfer each roll to the baking pan. Using your fingers, place some beaten egg on all exposed ham slices. With a spoon, sprinkle breading mixture over ham rolls, covering evenly.