Season the chicken: In a bowl, mix chipotle powder, paprika, garlic powder, salt, pepper, olive oil, and lime juice. Coat chicken and let sit for 5–10 minutes.
Cook the chicken: Heat a skillet over medium-high. Cook chicken 5–6 minutes per side, or until fully cooked. Let rest and slice.
Make the rice: Combine warm cooked rice with lime juice, chopped cilantro, and a pinch of salt. Set aside.
Warm toppings: Heat black beans and corn in a small pot or microwave until warm. Prep remaining toppings.
Make the drizzle: Mix sour cream (or yogurt), lime juice, salt, and optional chipotle sauce in a small bowl.
Assemble: In each bowl, add rice, sliced chicken, beans, corn, tomatoes, onion, lettuce, avocado, and cheese. Drizzle with the sauce.
Serve: Enjoy fresh or store components separately for easy meal prep.