Cook quinoa according to package directions.
Using a food processor, add beans, onion, cilantro, oil, garlic, salt, chili powder, cumin and pepper. Blend until smooth.
Mix chia seeds with water; add to bean puree along with quinoa, oats; blend until sticky and you are able to mold it. Divide into fourths and shape into patties.
Heat oil in a skillet over medium heat; cook each side for 5-6 minutes, until browned.
Serve on rolls with lettuce and any other favorite toppings, with frozen mango on the side.