Taco Bell wants you to use their self purchasing machines. They are a mess. No search function, so it is next to impossible to find what you want, especially if you are not a regular.
At the one at 7853 Colonial Drive, Orlando, FL, waiting to order at the counter takes an eternity. They keep servicing their drive through, and kind of ignore you. Once you have successfully placed your order, and it arrives, make sure to check it carefully. It will be wrong 98% of the time. Mine was, and I realised too late, when I was already at home.
That Taco Bell sucks.