This is a delicious, easy appetizer, and always a hit! Ham and Swiss cheese are baked inside rolls with a flavorful spread to form delicious little sandwiches.
Preheat oven to 350 degrees F (175 degrees C).
In a medium bowl, mix together butter, poppy seeds, onion, Worcestershire sauce and prepared Dijon-style mustard.
Slice rolls in half horizontally and set aside tops. Spread bottoms with the butter mixture. Top with ham and Swiss cheese. Replace tops.
Arrange rolls in a single layer in a medium baking dish. Bake in the preheated oven 10 to 12 minutes, until rolls are lightly browned and cheese is melted.
Per Serving: 416 calories; protein 12.1g; carbohydrates 31.4g; fat 27.2g; cholesterol 62.7mg; sodium 747.6mg.