This is a hot pastrami sandwich, so I recommend making it right after making the pastrami, or heating it up if you've refrigerated it before assembling. You've got a few options when it comes to ...

Put the cucumber slices into a bowl and pour over the hot vinegar mixture ... mustard, pastrami, cheese and pickled cucumber. Finish each sandwich with a piece of bread. Wrap each sandwich ...

Purists will tell you that a New York Pastrami Sandwich is simple: pastrami, bread, and mustard. A true NY Pastrami Sandwich ...