I would just go get me some tacos from Jack in the Box.
At first I was going to argue against the idea of "it's only $20", as $20 may be a lot for some people (I say that implying nothing about the OP), but unlike items on a fast food menu, your principles aren't something you can affix a monetary value.
So onto my serious statement -- Do your tastebuds not work? I have no idea why people are in love with these cold, greasy, just-add-water, gritty powdered beef mix tacos.
Yuck.