In a large mixing bowl, combine the shredded chicken, diced tomatoes with green chilies, cream cheese, sour cream, garlic powder, onion powder, sliced jalapeños, half of the cheddar cheese, and pepper jack cheese. Mix until all ingredients are well combined.
Season the mixture with salt and pepper to taste.
Spread the mixture evenly into a greased 9x13 inch baking dish.
Top the casserole with the remaining cheddar cheese and crushed tortilla chips, giving it a nice crunch.
Bake in the preheated oven for 25-30 minutes, or until the cheese is bubbly and the edges are slightly golden.
Once done, remove from the oven and let it cool for a few minutes before serving.
Garnish with fresh cilantro if desired, and enjoy!
Notes
Adjust the amount of jalapeños to your taste for spiciness.