"Pasadena claims to be the birthplace of the cheeseburger, and while the truth of such things is lost to history, there is no denying the enduring prominence of Pie ‘n Burger. A legend since 1963, this diner turned ode to all things burger continues to turn out impeccable California classics, complete with special sauce and lightly melted American cheese. The burgers come without cheese, so make sure to specify if a slice is desired (it costs 50 cents to add on). Make sure to save room for a slice of freshly-baked pie at the end of any meal here. Know before you go: Pie ‘n Burger is quite small and gets busy during peak hours, so prepare for a wait" - Eater Staff