Ingredients

  • 1 medium onion
  • 1 lb sliced ham
  • 3/4 lb swiss cheese
  • 1 cup butter or 1 cup margarine, at room temperature
  • 3 tablespoons poppy seeds
  • 1 teaspoon Worcestershire sauce
  • 3 tablespoons prepared mustard
  • 3 (8 ounce) packages party rolls

Method

  • Preheat the oven to 325 degrees.
  • Using a food processor, in separate batches chop the onion, ham and cheese.
  • In a medium-size bowl combine the butter, poppy seeds, Worcestershire and mustard and add the onion, ham and cheese.
  • Split the pans of rolls in half horizontally, leaving the sheet of bottom halves in the pan. Spread each bottom with 1/3 of the ham and cheese mixture.
  • Top with the sheets of top halves and cut into individual servings by following the outline of the rolls. The rolls can be frozen at this time.
  • At serving time, cover the foil pans with aluminum foil and heat through, 25 to 30 minutes (less if not frozen).