As far as fantasy sandwiches go, elves would have their own kind of banh mi (vegetables pickled in century-vats), dwarves would be patty melt fanatics (forge-heated), don't think orcs can handle gluten so probably just charred meat betwixt lettuce, goblins... shokupan + egg salad
Cormac McCarthy staggering to the typerwriter after a couple of long island ice teas and hammering out "horses are the most scariest animal in the world"