Pork Cubanos: (recipe adapted from Food and Wine found HERE.)
leftover pork tenderloin (recipe I used found HERE.)
Cut sub rolls in half and brush butter on cut sides of bread. Place bread, buttered side down in a large skillet heated over medium heat. Toast bread until lightly browned. Spread mustard on cut sides of bread. Layer ham, cheese, pickles, and pork onto sandwich. Add sandwiches back to skillet and brown on each side for a minute or two pressing it down with a spatula until the cheese is melted. You could also use a grill pan or a panini press for this, but, since I don't have either of those, a skillet worked just fine.