In a bowl, coat the chicken with olive oil, lime juice, chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, and black pepper.
Heat a skillet over medium-high heat.
Cook the chicken for 5–7 minutes per side, or until fully cooked and the internal temperature reaches 165°F.
Let the chicken rest for 5 minutes, then slice or chop it.
Stir chopped cilantro and lime juice into the cooked rice.
Warm the black beans and corn if desired.
Divide the rice between bowls.
Top with chicken, black beans, corn, salsa, lettuce, cheese, avocado, and sour cream if using.
Garnish with green onions and serve with lime wedges.