01 - Set oven temperature to 400°F (204°C) and allow to preheat fully.
02 - Combine shredded chicken with barbecue sauce in a bowl and mix until evenly coated.
03 - Place flatbreads on a parchment-lined baking sheet. Evenly spread barbecue chicken mixture over flatbreads.
04 - Sprinkle mozzarella cheese, red onion slices, black beans, cherry tomatoes, and jalapeños over chicken mixture.
05 - Transfer to oven and bake for 10-12 minutes until cheese melts and edges turn golden brown.
06 - Remove flatbreads from oven, scatter chopped cilantro on top, slice into nacho-sized pieces, and serve immediately.