In-N-Out

The chain only has three combo meals, but that's enough to keep 'em coming. Mother's milk to Californians. Fries, drinks, shakes, and burgers, and that's it. Of course, there are a million off-menu ways to customize: animal style (sauce, fried onions, and cheese) on your burger or fries; grilled cheese; a quadruple-quadruple if you like (yup, four patties, four slices of cheese); even protein style, though naturally going bunless is a relatively new specialty. It's the best burger joint ever, and don't try to argue it.