Taco Bell was founded by Glen Bell, who first opened a hot dog stand called Bell's Drive-In in San Bernardino, California in 1946 when he was 23 years old. In 1950, he opened Bell's Hamburgers and Hot Dogs in San Bernardino's West Side barrio. According to Gustavo Arellano, author of Taco USA: How Mexican Food Conquered America, Bell watched long lines of customers at a Mexican restaurant called the Mitla Cafe, located across the street, which attracted a dedicated customer base for its hard-shelled tacos. Bell began eating there regularly, attempting to reverse-engineer the recipe, and eventually won the confidence of the proprietors such that they allowed him to see how the tacos and other foods were
prepared.In late 1951 or early 1952, he took what he had learned and opened a new stand, this time selling tacos under the name of Taco-Tia.
What type of food did the creator of Taco Bell originally start selling?