Trim and cut chicken breast into bite-sized pieces. Season with garlic salt.
Brown the chicken in the hot oil at med/hi until pink is gone. Remove into a bowl and set aside.
In the same skillet heat another Tbsp of olive oil. Sauté onion over med/hi heat until softened. Add the garlic and cook & stir for another minute.
Add remaining spices and the rice. Cook and stir for 2 more minutes.
Pour the onion/rice mixture into a 9x13 baking dish. Add the broth and water and stir until well mixed. Cover with foil and bake for 50-60 minutes, stirring halfway through.Casserole is done when the rice is soft.
Remove the foil and add the cheese on top. Bake uncovered for another 5-10 minutes until the cheese is melted.
Dish up and top with cilantro, sliced avocado and sour cream. Serve with tortilla chips if desired.
Keyword casserole, chicken casserole, family dinner, rice, rice casserole