Cook the rice: Rinse the rice until the water runs clear. Add to a pot with broth or water and a pinch of salt.
Bring to a boil, reduce to a gentle simmer, cover, and cook until tender (about 12–15 minutes for white rice, 35–40 for brown). Fluff and set aside.
Season the chicken: Pat the chicken dry. In a bowl, mix olive oil, chili powder, cumin, smoked paprika, garlic powder, onion powder, salt, pepper, and lime juice.
Coat the chicken evenly.
Cook the chicken: Heat a large skillet over medium-high. Add the chicken and cook 5–7 minutes per side, depending on thickness, until the center reaches 165°F (74°C). Rest for 5 minutes, then slice or dice.
Warm the beans and corn: In a small pan over low heat, add black beans with 1–2 tablespoons water, 1/2 teaspoon cumin, and a pinch of salt.
Stir until warm. If using frozen corn, warm it in the same pan after the beans or microwave until hot.
Prep the veggies: Dice the pepper, slice the onion, halve the tomatoes, and chop the cilantro. Cut the avocado just before serving to keep it fresh.
Make the sauce (optional): Whisk Greek yogurt, lime juice, olive oil, garlic, salt, and pepper until smooth.
Adjust with more lime or a splash of water for a drizzleable texture.
Assemble the bowls: Start with a base of rice. Add chicken, black beans, corn, peppers, onions, and tomatoes. Top with avocado, cilantro, cheese (if using), and a spoon of Greek yogurt.
Finish with salsa or the creamy lime sauce and a squeeze of lime.
Taste and adjust: Add a pinch of salt, extra salsa, or hot sauce to balance flavors. Serve warm.