Preheat the oven to 375°F. Brush both sides of the tortillas with olive oil and place them in a muffin tin to form bowls. Bake for 10-12 minutes or until crispy and golden brown. Remove from the oven and set aside.
In a large mixing bowl, combine the shredded chicken, salsa verde, black beans, corn, and cherry tomatoes. Stir well to combine and season with salt and pepper to taste.
In each tortilla bowl, layer 1/4 cup of cooked rice, followed by the chicken mixture.
Top each bowl with diced avocado, shredded cheddar cheese, and a dollop of sour cream.
Garnish with fresh cilantro before serving.