1 c. butter, softened
2 dozen Pepperidge Farm rolls
1 lb. thinly sliced ham
8 oz. thinly sliced Swiss cheese
1 tbsp. Worcestershire sauce
3 tbsp. poppy seeds
3 tsp. mustard
1 med. onion, chopped

Blend butter, poppy seed, Worcestershire sauce, mustard, and onion in a food processor or blender. Slice whole packages of rolls in half, put bottom half back in tins and spread with half of the above mixture; layer ham and cheese on rolls. Spread remaining mixture on top section of rolls and place on top of ham and cheese. Cover with foil and bake at 400 degrees for 10 to 20 minutes.