Taco Bell menu tries wild items, new kind of shell
Early testers give their feedback on the new menu items.

For anyone who consumes fast food regularly, it's likely you've already noticed that your favorite drive-through joint (along with all the others) are always offering up something new.
The race to innovate and disrupt is present at pretty much all casual service chains. Sure, a customer might buy food or even become a regular. But if you don't offer new things, you risk losing their loyalty.