Add the cooked quinoa, grated carrots, finely chopped red bell pepper, finely chopped onion, minced garlic, ground cumin, coriander, salt, black pepper, breadcrumbs, and the beaten egg to the mashed black beans. Mix until everything is well combined.

Form Patties

Divide the mixture into two equal parts and shape them into burger patties.

Chill Patties

Place the patties on a plate and refrigerate for about 30 minutes to firm up.

Cook the Patties

Heat Oil

In a non-stick skillet, heat a tablespoon of oil over medium heat.

Cook Patties

Once hot, add the chilled patties to the skillet and cook for about 4-5 minutes on each side, or until golden brown and heated through.

Assemble the Burger

Toast Buns

If desired, toast the burger buns in the skillet for 1-2 minutes until lightly golden.

Layer Ingredients

On the bottom half of each bun, place a lettuce leaf, followed by a slice of tomato, the cooked burger patty, and drizzle with special sauce. Top with the other half of the bun.