Slice the chicken breast into bite-sized pieces and season with cumin, smoked paprika, garlic powder, sea salt, and black pepper.
Heat olive oil in a large skillet over medium-high heat.
Add the bell peppers and red onion to the skillet, sautéing until they are tender and slightly charred.
Move the vegetables to the side of the pan and add the chicken, cooking for 5-7 minutes until golden brown and cooked through.
In a small bowl, toss the cooked brown rice with lime juice and chopped cilantro.
Assemble the bowl by layering the rice, black beans, chicken, and sautéed vegetables.
Top with fresh pico de gallo and sliced avocado before serving.