Shhh… LA’s best burger chain has a secret menu known only to locals. And now you. In-n-Out Burger is a true LA phenom, as the cars jamming the drive-through can attest. Burgers, fries, soda, shakes – that’s all it offers under the yellow-and-red roof but fresh and simple works, as does the burgers’ tasty sauce. The secret menu adds a twist to the preparation.