Preheat oven to 350 degrees F.
Mix your chicken, sour cream, cream of chicken soup, Rotel, seasoning packet, and corn together.
Crunch a few of the chips up and sprinkle on on bottom of pan.
Spread the chicken mixture over the chips in an even layer.
Add the rest of the chips to the top of the chicken mixture.
Cover with shredded cheese.
Bake for 30-35 minutes or until the cheese is melted and the casserole is bubbly on the sides.
Remove and let cool for a few minutes.
Serve warm!