Preparation:
Cook onion in the 2 tablespoons butter until onion is tender, but not brown. Blend in flour, salt and pepper. Add undrained mushrooms, cream and sherry. Cook and stir until thickened. Add chicken, ham and water chestnuts. Pour into 1 1/2 quart casserole; top with cheese. Mix crumbs and melted butter and sprinkle around the edge of casserole. Bake in hot oven (400 degrees) until lightly brown, about 25 minutes. |