Four ciabatta rolls, halved
½ pound thick-sliced ham (leftover Honey Baked Ham is perfect for this type of sandwich)
Four slices thick-sliced provolone cheese
⅓ cup whole-grain mustard
Favorite sandwich toppings
Preheat your broiler
Evenly spread each roll with mustard and mayonnaise, to taste, and divide the ham and cheese slices among the bread.
On a lined baking sheet, arrange the sandwiches open-face style and broil until the cheese is melted and and the tops of the rolls are toasted.
Top with each diner’s preferred sandwich toppings and serve.