These are so super yummy. I made a batch of these for a potluck recently and they were devoured in minutes.
24 King's Hawaiian Rolls
1/2 pound shaved ham
12 slices Swiss cheese
3/4 stick butter
1 teaspoon Dijon mustard
1 teaspoon Worcestershire sauce
1 teaspoon dried onions
Poppy seeds for garnish
Slice the King's Hawaiian rolls in half. Line the bottom of a 9X11 baking pans with the bottom halves of the rolls. Spread the ham over the rolls, and then layer the Swiss cheese on top. Place the other halves of the rolls on top. Set aside.
In a small sauce pan, combine the butter, mustard, Worcestershire sauce, and dried onions. Over medium heat, stir until the butter has melted to create the sauce. Pour the sauce over the tops of the rolls. Sprinkle poppy seeds over the top. Cover the pan tightly with aluminum foil, and then refrigerate for at least three hours -- overnight is better.
Preheat the oven to 350 degrees. Place the covered rolls in the oven for 20 minutes. Uncover and bake for an additional 5 minutes, or until the cheese has finished melting. Serve warm or at room temperature.
By the way, these are also just as yummy cold -- great for lunch!