When I decided to cook a half-spiral ham for just the Honey and me on Easter, I expected there to be a mountain of scrumptious leftovers. I did not anticipate using the entire rest of the ham to make these out-of-this-world Ham and Swiss Sandwiches. However, mysterious things happen in the kitchen, and these sandwiches definitely happened. Three or four times. With thick, spiral-cut ham slices, melted Swiss cheese, a good slather of mustard and a healthy dollop of strawberry jam, these indulgent sandwiches have officially become our favorite way to use up leftover ham.