Chicken Casserole Supreme

3 whole chicken breasts cooked and chopped, or about 3 cups of leftover roasted chicken
1 can cream mushroom soup
1/2 stick butter melted
1 8 oz. package stuffing mix
1 16 oz. sour cream
1 can chicken broth
1/2 small onion chopped

Combine soup, butter, sour cream, chicken broth, and onion, and mix. Then fold the chicken and stuffing. Place in greased casserole dish and cook at 375 for 30 minutes.

This casserole freezes well if covered well.