In a large bowl, combine the chicken, salsa and taco seasoning stirring until the chicken is evenly coated.
Spread the refried beans evenly in the bottom of a 2 qt casserole dish. Then top the beans with the chicken mixture and finish with the cheese.
Bake at 350˚F for 20-25 minutes until piping hot all the way through.
Top the casserole with crushed tortilla chips, lettuce, pico de gallo and sour cream. Serve immediately.
For an extra crispy chip layer, add the chips on top of the cheese after the casserole has cooked for about 10 minutes and the cheese is melted then return to oven for the remainder of the cooking time.