Drain the black beans and shake them around in a strainer, but do not rinse.
Put the beans in a large bowl and, with a fork, mash them until 3/4 of the mixture of mashed. Leave 1/4 of the beans in full form for texture.
Add the panko bread crumbs, egg, and seasoning.
With the fork, fold the ingredients in until everything is completely combined.
With clean hands, start forming the patties. A heaping handful should make one good-sized patty.
If not making the patties right away, wrap and place in the refrigerator.
Heat a lightly greased skillet over moderate heat.
Carefully place the patties onto the skillet.
Cook for 4 minutes or until lightly browned, then carefully flip.
Cook for another 4 minutes or until lightly browned.
Place cheese slices on top of patty and cover with a lid to steam the cheese.
Remove the patties from the skillet, place on brioche bun, and dress the burger as you wish.