GF Chicken Tostada Casserole

Time for another yummy recipe- another one of my husband's favorites...

Chicken Tostada Casserole:

1 bag GF Tortilla chips* (Dorito's corn chips are great in this)
1 small Onion, chopped
3 Chicken breasts, chopped and cooked
1 can Cream of Mushroom* (Campbell's is a no-no, but Health Valley Organic Cream of Mushroom is GF)
1 cup Sour Cream
1 small can Green Chilis*, chopped
1/2 tsp Garlic Salt
3/4 lb. grated Cheddar Cheese
3-4 tsp Butter

* These items can contain gluten, so please check your labels and make sure you buy a brand that is GF.

Directions:

Combine onion, cream of mushroom, sour cream and garlic salt to make sauce.

In 9 x 13 casserole dish, layer half of the chips, crushed, then half the chicken, half the sauce mix, and half the cheese; Repeat, then dot butter on top.

Bake at 350 degrees for 30 minutes.