01 -
Coat a 23x33 cm (9x13-inch) oven dish lightly with some nonstick cooking spray.
02 -
Mix the shredded chicken, dry rice, cream of chicken soup, sour cream, diced onion and bell pepper mix, tomatoes with chilies (juices included), chicken stock, fajita seasoning, and half the Mexican cheese in a large bowl. Keep mixing until everything's blended well.
03 -
Transfer the mixture to the greased pan, spreading it evenly and leveling it out with a spatula.
04 -
Cover the top with foil and bake in an oven preheated to 175°C for 35 minutes.
05 -
Take off the foil, sprinkle the rest of the cheese over the top, and return to the oven. Bake uncovered for another 10 minutes, or until the cheese is fully melted and bubbling.