Pat the chicken breast dry and season both sides evenly with chipotle powder, cumin, garlic powder, sea salt, and black pepper.
Heat the olive oil in a medium skillet over medium-high heat until shimmering.
Place the chicken in the skillet and sear for 5-7 minutes per side, or until the internal temperature reaches 165°F.
Remove the chicken from the pan and let it rest for 5 minutes before dicing into small cubes.
In the same skillet, add the sliced bell peppers and red onions, sautéing for 4-5 minutes until they are tender and have developed charred edges.
While the vegetables cook, warm the cooked brown rice and the rinsed black beans in the microwave or a small pot.
Assemble the bowl by placing the brown rice at the base, followed by the black beans, diced chicken, and sautéed vegetables.
Finish the bowl by drizzling with lime juice and topping with fresh cilantro, salsa, and a dollop of Greek yogurt as a clean swap for sour cream.