Ingredients

  • 1 cup butter or margarine, softened
  • 1 small onion, minced
  • 1 tablespoon poppy seeds
  • 2 teaspoons Dijon mustard
  • 1 teaspoon Worcestershire sauce
  • 5 (7 1/2-ounce) packages party rolls
  • 2 pounds thinly sliced ham, chopped
  • 12 ounces Swiss cheese slices

Method

  • Beat butter and next 4 ingredients at medium speed with an electric mixer until blended.
  • Split rolls horizontally without separating; spread butter mixture evenly over bottom halves. Top with ham, cheese, and remaining halves of rolls.
  • Bake at 350° for 15 minutes.