Dairy products play a crucial supporting role when hosting a carne asada. They provide a welcoming contrast to all the meat in your taco, and for vegetarians, the dairy options can be their whole world. Mexico quickly made cheese into a staple food after it was introduced by Spain in the 1500s. There have been so many regional styles and textures found all over Mexico. A handful of these cheeses made the migration to the United States, many times in the suitcases of immigrants from Mexico who brought their hometown favorites into cities like Los Angeles, Chicago, and New York.