You seem to be under the impression that Taco Bell and others of its ilk actually use meat.
But that's the thing; what they use is technically meat, by Law - it's just not derived from the parts of an animal you would normally countenance serving as "meat" if the person eating it could actually see it. Or how it was prepared.
It's all technically meat, even if it's heart and tongue. By USDA code at least, they don't use organs and other non-muscle tissue, though granted at some point it's really up to the slaughterhouse regarding how much filler 'accidentally' ends up in canner grade beef. But realistically, it can happen at any grade of beef, not just the low end. Which is why Japan and China tend to go absolutely
ape-shit over the quality of beef products shipped to them, from the US. But usually, what you're going to find in Taco Bell beef is meat that's, well, old. In terms of the cow being old. Domesticated cattle will usually 'live' about 6 years before they're slaughtered, cows which produce milk might live a little longer, but are also usually slaughtered within a few years of that; the thing is, the older a cow gets, the lower quality it's meat is, so it's got less marbling and tends to have less flavor, and is also tougher. You can't use it for steaks, so it gets ground up and served up as a low-end meat product. And let me tell you, you might not be able to tell the difference when you're eating it, because commercially they'll tend to put in a lot of fillers and flavorings and crap, but there's a definate difference between raw canner beef and raw retail beef, because canner beef tends to smell like a
dirty sweatsock full of ass and looks like a lifeless pile of grey jellified crap, whereas retail beef has some semblance of structure, no smell, and usually a cheery red color produced by blasting it full of carbon monoxide. [Themoreyouknow.png]