(This is a great one that my mom has been making for years!)
3 cups chicken - cooked and cubed
1 can cream of mushroom soup
1 small can mushroom (drained)
1/2 cup water
1 cup herb stuffing
Spray 8x8" square casserole dish with cooking spray and spread 1/2 of cubed chicken on the bottom. Mix together soup, mushrooms and water and pour 1/2 of mixture over chicken. Spread 1/2 cup stuffing (more if needed) over soup until that layer is covered. Repeat with layering chicken, soup mixture, then stuffing. Cook at 350 degrees for 30 minutes.