Dice the chicken breast into bite-sized pieces and season evenly with chili powder, cumin, garlic powder, sea salt, and black pepper.
Heat the olive oil in a medium skillet over medium-high heat.
Add the chicken to the skillet and sauté for 5-7 minutes until golden brown and cooked through, then remove and set aside.
In the same skillet, add the sliced bell peppers, red onion, and corn, cooking for 3-4 minutes until the vegetables are tender-crisp and slightly charred.
Warm the cooked jasmine rice and black beans in the microwave or a small saucepan.
Assemble the bowl by placing the rice at the base, followed by the black beans, sautéed vegetables, and cooked chicken.
Top the bowl with fresh avocado slices, chopped cilantro, and a bright squeeze of lime juice before serving.