Want to make this recipe gluten-free? No problem at all! Just swap out the regular egg noodles for your favorite gluten-free variety (there are so many good options these days). For the roux, instead of all-purpose flour, you can use a gluten-free flour blend or even cornstarch. Both will help thicken the sauce just the same. Don’t forget to check your chicken stock and breadcrumbs to make sure they’re gluten-free, too. With these simple swaps, you’ll have all the creamy, delicious goodness of this casserole without the gluten—so everyone can enjoy!