To turn this Mexican Lasagna recipe, into a gluten-free version just choose corn tortillas instead of flour tortillas. Make sure the taco seasoning you use is certified gluten-free as some brands might have hidden sources of gluten. Also check the labels on refried beans and other packaged ingredients to make sure they are gluten-free. By making these substitutions you can enjoy every layer of this dish without any concerns about gluten. Delight in the flavors, without compromising!