In-N-Out Burger is known for its simple, high-quality menu of burgers (
Hamburger, Cheeseburger, Double-Double), fries, and shakes. Its iconic,{" ""Not-So-Secret Menu" includes Animal Style (mustard-grilled patty, extra spread, grilled onions), Protein Style (lettuce wrap), 3x3 or 4x4 burgers, and Flying Dutchman (meat/cheese only).
Key Secret Menu & Custom Options:
- Animal Style Burger: Mustard-cooked beef patty with lettuce, tomato, pickles, grilled onions, and extra spread.
- Animal Style Fries: Fries topped with cheese, grilled onions, and spread.
- Protein Style: Any burger wrapped in lettuce instead of a bun.
- Flying Dutchman: Two slices of melted American cheese between two burger patties.
- 3x3 / 4x4: Burgers with three or four patties and slices of cheese.
- Grilled Cheese: A toasted bun with two slices of melted American cheese, lettuce, tomato, and spread (no meat).
- Customization: You can ask for mustard-grilled patties, raw or grilled onions, chopped chilies, or for your burger to be cut in half.
- Shakes: Classic vanilla, chocolate, and strawberry, which can be swirled for a Neapolitan shake