DIRECTIONS
In a saucepan, saute onion and celery in butter until tender. Add soups, milk, mushrooms, pimientos, olives, Worcestershire sauce and seasonings; mix well. Add chicken, mostaccioli, 3/4 cup cheddar cheese and the Swiss cheese; toss to mix.
Pour into a greased 13-in. x 9-in. baking dish. Cover and bake at 350° for 40 minutes. Uncover; sprinkle with remaining cheddar and return to the oven for 15 minutes. Yield: 6-8 servings.