In a large bowl combine the shredded chicken, sour cream, salsa, cream of chicken soup, half the cheese and taco seasoning.
Crush the nacho chips and add half of the to the bottom of a 9x13 baking dish. Top with the chicken mixture. Add the remaining chips to nacho chips on the chicken layer and sprinkle with the remaining cheese.
Bake for 20-25 minute or until the cheese is bubbly. Serve with fresh lettuce, tomatoes, or avocados.