In a medium bowl combine the cumin, garlic powder, and onion powder. Place the chicken strips into the seasoning and toss until all is coated.
Heat the olive oil in a large skillet over medium heat. Add the chicken and cook until it starts to brown.
Add the green peppers and onions. Continue to cook until the chicken is no longer pink inside and the green peppers and onions are tender-crisp.
Drain and rinse the black beans. Add the black beans once the chicken and vegetables are done cooking. Heat until the black beans are heated.
Season with salt and pepper. Mix in the lime juices
While the chicken is cooking prepare the quinoa using the directions on the package.
To assemble-
Add quinoa to each bowl, top with chicken and vegetables.
Add fresh tomatoes and avocados if desired.