Cut turkey (or chicken) into bite size pieces. saute 1/2 cup chopped celery and 1/2 cup chopped onions in 1/4 cup butter or margarine. Mix togehter chicken, the sauteed vegetables, salt and pepper to taste, 1 can cream of chicken soup (I used cream of mushroom), 1/2 cup of sour cream and 2 cups of cooked rice (I used noodles!), Place in greased casserole dish. Grate sharp cheese on top. Bake 400 degrees for 20 minutes uncovered.