When Rosemary Jamison, proprietor of Texas Taco, tells us her dream is to one day be a franchise bigger than Taco Bell, we take her wish with a few grains of salt. There isn’t a commercial enterprise anywhere in this country less likely to inspire either imitators or massive infusions of corporate capital. And we mean that in the nicest possible way, for Texas Taco is a one-of-a-kind restaurant sure to bring joy to the hearts Roadfood adventurers.