The simplicity of this dish is that it bakes in one pan and is a great use of any leftover chicken or turkey you may have. When coupled with pasta, this classic dish is truly a creamy and comforting dinner solution. A great thing about this recipe is that is involves enough ingredients to make two casseroles—one for now and one for later. This chicken recipe provides great freezing and baking instructions for prepping your second leftover casserole as well. This is the perfect family dinner dish.