Slice the chicken breast into thin, even strips and place them in a bowl.
Whisk together the chili powder, ground cumin, garlic powder, sea salt, and black pepper, then toss with the chicken until well coated.
Heat the extra virgin olive oil in a large cast-iron skillet over medium-high heat.
Add the seasoned chicken to the skillet and sear for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Remove the chicken from the skillet and set aside; add the sliced bell peppers and red onion to the same pan.
Sauté the vegetables for 4-5 minutes until they are tender-crisp and slightly charred.
Rinse and drain the black beans, then add them to the skillet along with the cooked chicken.
Toss everything together for 1-2 minutes to heat through.
Remove from heat, drizzle with fresh lime juice, and garnish with chopped fresh cilantro before serving.