Cook the Quinoa: Rinse the quinoa under cold water and then combine it with the chicken broth in a medium pot. Bring to a boil, then reduce the heat, cover, and let it simmer for about 15 minutes or until the liquid is absorbed and the quinoa is fluffy.
Cook the Chicken: While the quinoa is cooking, heat a skillet over medium heat. Add the diced chicken to the skillet, season with cumin, chili powder, salt, and pepper, and cook until the chicken is golden and cooked through (about 7-10 minutes).
Combine Ingredients: In a large bowl, combine the cooked quinoa, chicken, black beans, corn, and diced bell pepper. Toss everything gently until well mixed.
Add Toppings: Top the mixture with diced avocado and sprinkle with fresh cilantro. Serve with lime wedges on the side.