Cook quinoa according to package directions. Allow to cool.
Place black beans, quinoa, chipotles, and spices, in a food processor. Pulse just a few times, enough to make the mixture sticky and well-mixed but not completely pureed. Ideally there will be some chunks of black beans still intact.
Transfer mixture to a bowl. Using a spoon or your hands, mix with egg and panko. Form into 4 thick burgers.
Heat a generous swish of olive oil over medium high heat (nonstick pan works best here). Add burgers to the pan and fry for a few minutes on each side, flipping carefully to keep them intact, until they are golden brown and crispy on the outside.
Serve on buns with spicy mayo, avocado, lettuce, tomato, red onion (pickled if you want!), whatever suits your fancy!
