To prepare this Ham and Noodle Casserole gluten-free, simply replace the egg noodles with a gluten-free pasta alternative of your choice. Additionally, ensure the cream of chicken soup is gluten-free, which can be found in most stores or made at home. For the bread crumbs, use gluten-free breadcrumbs or crushed gluten-free crackers. The rest of the ingredients are naturally gluten-free, making it an easy adaptation.