http://www.theblaze.com/stories/2014/04/30/the-answer-to-what-youve-always-wondered-about-taco-bells-meat-whats-actually-in-it/
I'm pretty sure that this is what all of the other fast food industries do anyways, so it really isn't a big deal if you eat at other fast food places.
Plus, there tacos are damn good regardless.