Old Fashioned Turkey Tetrazzini

"Turn those Thanksgiving leftovers into one of the most delicious casseroles ever! Combine chopped roasted turkey and pasta with a creamy, cheesy mushroom sauce to create a hearty Turkey Tetrazzini Casserole your whole family will be excited about! This Old Fashioned Turkey Tetrazzini Casserole is my standard after-Thanksgiving, use-up-the-turkey casserole. Its ingredients are quite different from the flavors on the Thanksgiving menu and that makes it very welcome. If you’re wondering just what Turkey Tetrazzini is, it’s an old-fashioned baked pasta casserole. You can make tetrazzini with either turkey or chicken. It’s a perfect recipe for using up leftovers! "