To make these Mini Chicken Sheet Pan Tostadas gluten-free. Simply use certified gluten-free corn tortillas. Many store-bought corn tortillas are naturally gluten-free. But it’s always best to check the label to be sure. Additionally, ensure that your refried beans. And any other ingredients. Such as the hot sauce. Are gluten-free. If you’re using a pre-made rotisserie chicken. Verify that it’s gluten-free as well. As some store-bought rotisserie chickens. May contain gluten in their seasoning or preparation. By making these small adjustments. You can enjoy these delicious tostadas. Without any gluten concerns.