Cook the Chicken: In a small bowl, mix the chili powder, cumin, garlic powder, salt, and black pepper. Rub the spice mixture onto the chicken breasts. Heat avocado oil in a skillet over medium heat and cook the chicken for about 6-7 minutes per side until fully cooked. Let the chicken rest for a few minutes, then dice it.
Prepare the Salad: In a large bowl, combine the corn, red onion, bell peppers, and black beans.
Mix & Dress: Add the diced chicken to the bowl. Squeeze lime juice over the salad and toss everything together. If desired, mix in fresh chopped cilantro for extra flavor.
Serve: Enjoy as-is, or serve in lettuce wraps, over greens, or in a tortilla for a heartier meal!