Preheat oven to 350.
First, roll out the pizza dough (approximately the size and shape of a sheet pan).
Next, spread Dijon mustard on the pizza dough leaving 1 inch boarder.
Now lay out cheese slices all over the pizza dough leaving 1 inch boarder.
Place salami all on top of the cheese also leaving a 1 inch boarder.
Roll up into a jelly roll length wise.
Seal the edges, place on parchment lined sheet tray, and bake for 15 minutes (or until browned on the top).