Preheat the oven to 400 degrees F. Spray a 9×13 inch baking dish with cooking spray.
In a large bowl combine the corn muffin mix, cream-style corn, eggs, milk, chili powder, cumin and 1 cup of the cheese. Stir till well combined and then pour into the baking dish. Place into the oven and bake for 20 minutes.
Remove from the oven and use a knife to pierce the cornbread in several places all over. Pour the enchilada sauce over the top of the casserole. Top with shredded chicken and the remaining Mexican cheese blend. Bake for another 20 minutes.
Allow to cool for 10 minutes and then slice and serve with toppings.