From my Harrowsmith cookbook Vol. 2, submitted by Anne Budge of Belfountain, ON. We assemble these on the vinyl tablecloth in assembly line fashion. One person places the ham, the other sprinkles the cheese and spices. We use more cheese than stated in the recipe because we usually make up a couple of pans of this. Really it is very flexible. Can substitute mushroom sauce in place of tomato sauce.