In a skillet, brown chicken and celery in butter.

In a large bowl, combine soup and broth until smooth. Add the mushrooms, onion, rice, poultry seasoning and chicken mixture.

Pour into a greased 13 x 9 x 2 inch baking dish. Cover and bake at 350 degrees for 1 hour. Uncover and bake for 30 minutes. Stir; sprinkle with cashews. Bake 15 minutes longer or until the rice is tender. Garnish with parsley.