1/2 lb. soft butter
3 tbsp. prepared mustard
3 tbsp. poppy seeds
1 tsp. Worcestershire
1 med. onion, chopped fine
3/4 lb. Swiss cheese
2 pkg. Pepperidge Farm party rolls
1 lb. ham or sandwich ham

Mix first 5 ingredients together. Spread mix on both sides of rolls. Use 2 pieces of ham and 2 pieces of cheese on each roll. Bake 10 minutes at 350 degrees.