Add your beans, garlic, paprika, cayenne, pepper, taco seasoning, salt, and lemon juice to a food processor. Pulse until the mixture is uniform and combined.
In a large bowl, mix together egg, breadcrumbs, roasted red peppers, onion, and bean mixture.
Fold in cooked black rice and mixture until combined.
Form mixture into 6 patties and place on a parchment paper-lined baking sheet. Bake at 375 for 30 minutes, flipping patties halfway through.
Serve patties on whole wheat buns and top with all your favorite burger toppings!