Marinate the Chicken: In a bowl, combine olive oil, chili powder, smoked paprika, cumin, garlic powder, cayenne, lime juice, salt, and pepper. Coat the chicken breasts evenly and let them marinate for at least 10–15 minutes (or overnight if prepping ahead).
Cook the Chicken: Heat a skillet or grill pan over medium heat. Cook chicken breasts for about 5–6 minutes per side, or until fully cooked (internal temp: 165°F/74°C). Let them rest for 5 minutes, then slice into strips.
Prepare the Rice Base: While the chicken cooks, warm the black beans and corn in a pan or microwave. Fluff the cooked rice and season with a pinch of salt and squeeze of lime juice.
Assemble the Bowls: Divide rice into 4 bowls. Top with sliced chicken, black beans, corn, cherry tomatoes, avocado, red onion, and fresh cilantro.
Add Toppings: Finish with your favorite toppings—like a dollop of sour cream, shredded cheese, or a drizzle of salsa. Add lime wedges for extra brightness.
Serve & Enjoy: Serve warm and let everyone customize their bowl!