Jack In The Box Jumbo Jack The Jack in ... it's home to the number one most expensive burger—by far. The restaurant's classic cheeseburger (which features American-style cheese melted over ...
Jumbo Jack Cheeseburger ... two slices of melted American cheese, lettuce, tomato, pickles, onions, ketchup, and mayonnaise on a bakery bun. This burger offers a classic experience.