Let's taco 'bout it: The origins of your favorite Mexican food

We all have our favorite classic Mexican dish. Whether it’s something traditional like tacos or a Tex-Mex fusion like fajitas, there are plenty of options to fill your belly. Some foods are even easy enough to make at home and make you feel like you’re eating at a Mexican restaurant. But do you know the history behind your favorite Mexican dishes? How did some of them become some of the most popular foods in America?