This is a look at the Gandhi tortilla from the side.  If you visit the Gandhi demonstration, you will see that when I finished it, it did not look like this.  This warping happened soon after I finished it.  It came about because the back of the tortilla was still soft, and as it dried out, the tortilla warped.  You can avoid this sort of problem by burning the back of the tortilla at the same time as you burn the image on the front.  The key is to dry the tortilla out entirely before you finish with it.