You can use any tortilla you like, but you'll want to make sure they're about 6-8 inches in diameter. More than that, and they may not fit in your pan, and less than that and they will be teeny tiny enchiladas! Look for tortillas that are made from a whole grain primarily - whole wheat, corn, quinoa, etc. Also, make sure you get a brand that is as low in sodium as you can find. As mentioned above, corn tortillas are often lowest in sodium.