Chicken Stuffing Bake A classic warming casserole. 4 chicken breasts or 6-8 chicken breast tenderloins 1 can cream of chicken soup (10.5oz) 8 oz sour cream 1 packet French onion soup mix 1 can mushroom slices (or fresh mushrooms) 1 box dry stuffing mix (6 oz) 3/4 cup chicken broth + 1/4 cup water Black pepper Butter Parsley Preheat oven to 350F. Lightly grease a casserole dish. Cut chicken into bite-size pieces and arrange in a single layer. Add about half of the mushrooms. Stir soup, sour cream, and onion soup mix together in a bowl. Spread the mix over the chicken. Top with the remaining mushrooms and a sprinkle of pepper. Mix together the chicken broth, water, and stuffing mix in a bowl. Spread over the sauce. Top with a few thin pats of butter. Cook for about an hour, or until chicken reaches 165F. Top with parsley to serve.