This recipe is already designed with gluten-free corn tortillas, but it is still important to confirm that all packaged ingredients are certified gluten free. In particular, check the dried chiles, tomato paste, dried oregano, ground cumin, and any store-bought toppings such as salsa, sour cream, or guacamole for additives or cross-contact risks. Also verify that the corn tortillas are labeled gluten free and not processed in a facility with wheat products if that is a concern. Use clean utensils, cookware, and prep surfaces throughout preparation to avoid cross-contact.