Older than both McDonalds and Burger King, Jack-in-the Box is the worlds fifth largest hamburger chain, with 1,089 outlets by the end of 1991 in thirteen states throughout the West and Southwest. The restaurant, headquartered in San Diego, boasts one of the largest menus in the fast food world a whopping forty five items. Now taste for yourself the homemade version of Jacks most popular item. The Jack-in-the Box Taco has been served since the inception of the chain, with very few changes over the years.
Source: “Top Secret Recipes” by Todd Wilbur.