Preheat your oven to 375°F. Spray a 9X13 inch baking dish with cooking spray; set aside.
In a large mixing bowl, combine the shredded chicken, cream of mushroom, soup, cream of chicken soup, diced tomatoes and green chilies, sour cream, garlic powder, onion powder, and salt. Mix well.
Add the corn, and black beans to the chicken mixture. Mix well.
Transfer the chicken mixture to prepared baking dish. Spread it evenly.
Place the corn chips on top of the chicken mixture, covering it evenly.
Sprinkle the shredded cheese on top of the corn chips.
Bake the casserole in the preheated oven for 25 minutes, or until the cheese is melted and bubbly.
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Notes
To save time, you can use store-bought rotisserie chicken for this recipe. Simply shred the chicken into bite-sized pieces using your hands or a fork.
If you like your casserole a little bit spicy, you can add some jalapeños, hot sauce or cayenne pepper to the chicken mixture.
We prefer using the larger-sized corn chips, commonly used for dipping, as a topping for this casserole. This way, we can easily grab a chip and use it to scoop up the delicious chicken mixture for a satisfying bite.