In a mixing bowl, marinate the chicken thighs with chipotle sauce, olive oil, garlic powder, paprika, cumin, salt, and pepper. Let it sit for at least 30 minutes to absorb the flavors.
While the chicken marinates, cook the brown rice according to package instructions. Set aside once done.
Preheat a grill or skillet over medium-high heat. Add the marinated chicken thighs and cook for about 6-8 minutes on each side, or until the internal temperature reaches 165°F (75°C). Remove from heat and let it rest for a few minutes before slicing into strips.
In a serving bowl, layer 1 cup of brown rice as the base.
Top the rice with sliced grilled chicken, black beans, corn, diced tomatoes, shredded lettuce, and cheese.
Add avocado slices on top for a creamy texture.
Garnish with fresh cilantro and serve with lime wedges on the side for an extra zesty flavor.