By Colette Bennett It’s the perfect balm to soothe the loss of the Mexican Pizza yet again. Like many classic fast food chains that have been around for decades, there comes a time when regular patrons like to look back on the history of the place they get their favorite drive-through meal. Some of those histories are longer than others (with White Castle being the oldest still running), but regardless, it’s often fun to look back at the humble beginnings of the chains many of us grew up with. For me, Taco Bell (YUM) – Get Yum! Brands Inc. Report was an early favorite in the ’90s. With its wei…