Faye's Chicken Squash Casserole

2 c. sliced squash

1 can cream of mushroom soup

1 can water chestnuts

6 oz. pkg stove top stuffing mix

1 medium onion, chopped

1 can cream of chicken soup

8 oz. sour cream

1 small jar pimentos

1 3/4 sticks margarine, divided

Saute onions in 1/4 stick margarine. Cook squash in 1/2 stick margarine. Melt remaining stick of margarine and combine with stuffing mix. Mix well. Place 1/2 of stuffing in 9x13 dish. Mix all other ingredients together. Place on top of stuffing. Place the rest of stuffing on top. Bake at 350 for 30 minutes.

*Note: there isn't any chicken in this casserole, but some could be added if desired. (This is the way Faye gave me the recipe in 1997) I would add 3 c. cooked chopped chicken.