To ensure this Zucchini Pizza Casserole stays gluten-free. Opt for certified gluten-free labels. On all packaged ingredients. Like marinara sauce and spices. For an extra touch of flavor. Consider adding gluten-free Italian sausage. Instead of turkey. Enhancing the robust flavors. Without compromising dietary needs. This dish is not only satisfying. But also aligns perfectly. With a gluten-sensitive lifestyle.