Cook the rice according to package instructions.
Season the chicken breasts with salt, pepper, and chili powder.
Heat a large skillet over medium heat and add a splash of olive oil.
Add the chicken to the skillet and cook for 5-7 minutes on each side until cooked through and no longer pink (165°F internal temperature).
When the chicken is almost done, add the corn to the skillet and sauté for 3-5 minutes until slightly smoky.
Remove the chicken and allow it to rest for a few minutes, then chop into bite-sized pieces.
In a large bowl, combine the cooked rice, sautéed corn, chopped chicken, cilantro, and lime juice.
Divide the mixture into serving bowls.
Top each bowl with sliced avocado and a sprinkling of cotija or feta cheese.
Serve immediately or store components separately for meal prep.