Preheat oven to 350°F degrees. Place the roll bottoms into a 10 inch cast iron skillet or baking dish of your choice. Squeeze about 1 teaspoon of mustard on each roll. Top each roll with half of the cheese, then the ham, then divide the Curly's Pulled Pork on top of the ham. (If using pickle chips, add them here.) Add the remaining cheese. Place the roll tops on.