Season chicken breasts evenly with chili powder, cumin, and salt.
Heat olive oil in a large skillet over medium-high heat.
Cook chicken for 6 to 7 minutes per side until the internal temperature reaches 165 degrees Fahrenheit.
Transfer chicken to a cutting board and allow to rest for 5 minutes before slicing into strips.
Prepare the dressing by blending Greek yogurt, cilantro, lime juice, garlic, and extra virgin olive oil in a food processor until smooth.
In a large mixing bowl, combine the romaine lettuce, black beans, corn, cherry tomatoes, and red onion.
Distribute the salad mixture into four bowls and top each with sliced chicken, avocado, and cotija cheese.
Drizzle the creamy cilantro dressing over the salad immediately before serving.