01 - Combine olive oil, chili powder, smoked paprika, cumin, garlic powder, salt, pepper, and lime juice in a bowl. Add chicken breasts and toss to coat thoroughly. Marinate for at least 15 minutes, up to 2 hours for deeper flavor penetration.
02 - Grill or pan-sear marinated chicken over medium-high heat for 6 to 7 minutes per side until internal temperature reaches 165°F and juices run clear. Let rest for 5 minutes before slicing into strips.
03 - Heat olive oil in a skillet over medium-high heat. Add corn kernels, smoked paprika, and salt. Sauté for 4 to 5 minutes until lightly charred. Remove from heat and stir in cotija cheese until melted and combined.
04 - Whisk together Greek yogurt, mayonnaise, lime juice, chili powder, garlic powder, and salt in a small bowl until smooth and fully incorporated. Adjust seasoning to taste.
05 - Divide cooked rice or quinoa evenly among 4 serving bowls. Arrange black beans, street corn mixture, cherry tomatoes, red onion, avocado, and sliced chicken on top of each base.
06 - Drizzle yogurt-lime dressing generously over each bowl. Garnish with fresh chopped cilantro and serve immediately while chicken is warm.