You may not have a wicker lunch bag, but you should probably wrap this guy up in wax paper to catch the juicy drips from the coleslaw and smoky BBQ sauce. (And perhaps carry a checkered napkin to wipe your fingers.)
Pork tenderloin, thinly sliced
To assemble this at home, lay thinly sliced pork tenderloin on either side of a kaiser bun, put a couple of large spoonfuls of coleslaw on top, and then a drizzle of your favourite BBQ sauce. The meat will act as a moisture barrier for the soft bun. You can also bring the slaw separately and add it last.
If you’re running short on time, it is totally legit to buy coleslaw at the deli.