1. Preheat oven to 350 degrees. Spray 9x13-inch glass baking dish with cooking spray.
2. Combine onion, water, soup, chili powder mix, pre-cooked chicken, cumin, uncooked rice, and peppers in pan and cook approximately 10-15 minutes on low heat until rice is tender.
3. Line prepared baking dish with 1 cup crushed tortilla chips. Pour in chicken mixture. Top with cheese and remaining 1/4 cup of tortilla chips.
4. Bake 10-15 minutes until cheese is melted and golden brown.