A delicious holiday appetizer featuring mini sandwich rolls filled with layers of ham and Swiss cheese, topped with a buttery mustard sauce. Perfect for lunch or entertaining guests during the holiday season.
1: Preheat the oven to 350 degrees F and grease a 9x13-inch baking dish.
2: Mix butter, Dijon mustard, Worcestershire sauce, poppy seeds, and dried onion in a bowl.
3: Separate the tops from the bottoms of the rolls; arrange the bottom pieces in a layer in the prepared baking dish.
4: Layer about 1/2 of the ham onto the rolls; add a layer of Swiss cheese and top with remaining ham slices.
5: Place the tops of the rolls onto the sandwiches.
6: Pour the mustard mixture evenly over the rolls.
7: Bake until the rolls are lightly browned and the cheese has melted, about 20 minutes.
8: Slice into individual rolls through the ham and cheese layers to serve.
