1 lb. chip chop ham
1 lb. sliced Swiss cheese
1 doz. buns
1/2 lb. soft butter
3 tbsp. mustard
2 tbsp. poppy seeds
1 tsp. Worcestershire sauce
1 sm. minced onion

Mix butter, mustard, poppy seeds, Worcestershire sauce and onion together. Spread this on both sides of bun. Add ham and cheese. Wrap in foil and bake at 350 degrees for 20 minutes. Can be frozen, if frozen bake longer or remove from freezer an hour or so before baking.