Heat oven to 350 degrees. In bowl, break up chipped ham ... cheese on each sandwich and put top bun on. ... sandwich in aluminum foil and place in oven for 40 minutes. Serve hot.
Combine butter, mustard, poppyseed, Worcestershire and onion in a bowl. Spread some on ... roll, wrap in foil and freeze. Bake at 400 ... 20 to 30 minutes.