Bánh mì, Vietnam
What’s in it: Bánh mì is actually Vietnamese for bread, especially the French-introduced baguette that houses the sandwich of the same name. The filling is basically a free-for-all hybrid of Viet-Franco ingredients: mayo, cilantro, garlic and fish sauce, cucumber, pickled carrots, plus either barbecue pork, fried tofu, pork belly, and ham, plus some pâté thrown on for good measure.
Fun fact: It was allegedly invented in Vietnam in the early '20s by Le Vo, a smoothie street vendor clearly ahead of his time -- smoothies! In the '20s? After closing up shop to escape the war in 1972, he landed in San Jose, CA and opened Ba Le Bakery, oft cited as the first Bánh mì joint in the US.