El Rey de las Fritas

If you thought a burger couldn’t get any better, then you’ve never tried a Cuban burger: known as fritas, they consist of a juicy patty loaded with sweet sauteed onions and then piled with thin, super-crispy shoestring fries—all sandwiched into a fluffy Cuban roll. El Rey de Las Fritas is a Miami institution with three brick-and-mortar locations, plus this roving truck.