Dice the chicken breast into bite-sized pieces and season with chili powder, cumin, garlic powder, and sea salt.
Heat the olive oil in a large skillet over medium-high heat and add the diced bell peppers and red onions.
Sauté the vegetables for 3-4 minutes until they are tender-crisp and slightly charred.
Move the vegetables to the side of the pan and add the seasoned chicken, cooking for 5-6 minutes until golden brown and cooked through.
In a small bowl, mash the avocado with the lime juice and a pinch of salt until smooth.
Place the warm cooked brown rice and rinsed black beans in a serving bowl.
Top the rice and beans with the sautéed chicken and vegetables.
Finish the bowl with a dollop of mild salsa, the creamy avocado mash, and fresh cilantro.