Sandwiches are illegal. You'll get escorted to the state line if someone sees you eating carbs slathered in fat.
That said, I once enjoyed Reubens and anything with peanut butter. Oh! And, I remember grilled cheese and eggsalad fondly from my youth. As an adult, I liked watercress sandwiches but even those are verboten nowadays.
When I sneak out to other states, I eat pulled pork.