Secret Menu Items at In-N-Out Burger
n-N-Out Burger is famous for its fresh ingredients, simple menu, and legendary secret menu items. Unlike many fast-food chains, In-N-Out actually acknowledges some of its secret menu options, but there are still hidden gems that only insiders and die-hard fans know about.
Whether you’re a longtime In-N-Out lover or a first-timer looking to upgrade your meal, here’s your ultimate guide to In-N-Out’s best secret menu items!
1. Animal Style Burger (The Most Famous Secret Menu Item)
If you’ve heard of only one secret item at In-N-Out, it’s Animal Style. This legendary burger includes:
A mustard-grilled patty (where mustard is spread on the patty before grilling)
Extra spread (a special Thousand Island-style sauce)
Grilled onions
Extra pickles
Extra cheese
🔥 Pro Tip: You can order ANY burger “Animal Style,” from a single cheeseburger to a 4x4!
2. Animal Style Fries (Secret Menu Fries Upgrade)
Take your fries to the next level by ordering them Animal Style.
Fries topped with melted cheese, In-N-Out’s signature spread, and grilled onions.
A cheesy, saucy, flavorful upgrade to plain fries.
💡 Want it crispier? Ask for “Well-Done Animal Style Fries.”
3. Protein Style Burger (Keto-Friendly Option)
Skipping the bun? Order any burger “Protein Style” to swap the bun for crisp lettuce wraps.
A great low-carb option while still getting the classic In-N-Out flavor.
Surprisingly delicious and extra fresh!
4. Flying Dutchman (For True Meat & Cheese Lovers)
If you love pure beef and cheese, the Flying Dutchman is for you:
Two beef patties
Two slices of melted cheese
No bun, no toppings, just meat and cheese
🔥 Pro Tip: Order it Animal Style to get mustard-grilled patties and extra spread!
5. The 3x3 (Triple-Triple) & 4x4 (Quad-Quad)
Can’t get enough beef and cheese? Go beyond the Double-Double!
3x3 = Three beef patties, three slices of cheese
4x4 = Four beef patties, four slices of cheese
💡 Before 2004, you could order as many patties and cheese slices as you wanted. But after someone ordered a 100x100 burger, In-N-Out capped it at 4x4.
6. Roadkill Fries (Animal Style + Flying Dutchman)
This super-secret item combines Animal Style Fries with a Flying Dutchman:
Animal Style Fries topped with chopped-up Flying Dutchman (two patties and cheese).
A meat-lover’s dream!
💡 This is NOT an official menu item, so some locations may not make it. If they don’t, just order both separately and mix them yourself!
7. Grilled Cheese (For a Meatless Option)
If you’re vegetarian or just want a cheesy sandwich, try this:
A toasted In-N-Out bun with two slices of melted cheese
Add grilled onions, lettuce, tomato, and spread for extra flavor
🔥 Pro Tip: Order it Animal Style for grilled onions and extra spread!
8. Neapolitan Shake (Best Secret Shake Option)
Why choose one shake flavor when you can have all three?
A blend of vanilla, chocolate, and strawberry
Super smooth and perfectly balanced!
💡 You can also customize shakes by mixing ANY two flavors (like Chocolate-Vanilla or Strawberry-Chocolate).
9. Extra Toasted Buns (For a Crispier Burger)
If you love a crunchier bite, ask for:
“Buns Extra Toasted” – They’ll leave them on the griddle longer for a crispier texture.
🔥 Perfect for Animal Style Burgers or extra saucy burgers!
10. Whole Grilled Onion Burger
Instead of getting regular grilled onions, ask for a whole slice of onion to be grilled.
Adds a stronger, slightly caramelized onion flavor.
Perfect if you love onions but don’t want them chopped!
11. Lemon-Up (Secret Drink Option)
In-N-Out doesn’t just have soda and shakes—you can mix their drinks!
Order half Lemonade, half 7-Up for a sweet, citrusy, fizzy drink.
Refreshing and perfect with a burger!
💡 Try other drink combos, like Pink Lemonade + Dr. Pepper!
12. Monkey Style Burger (The Ultimate Combo Hack)
This is one of the most talked-about secret menu items—but it’s not officially recognized.
It’s a burger with Animal Style Fries stuffed inside!
Most locations won’t make it for you, but you can order Animal Style Fries separately and add them yourself.
🔥 Highly recommended for sauce and cheese lovers!
How to Order a Secret Menu Item at In-N-Out
Because some of these items aren’t officially on the menu, you’ll need to customize your order. Here’s how to do it the right way:
✅ Be polite – Some workers may not know every secret menu item, so be patient! ✅ Know the recipe – If they don’t recognize a name (like “Roadkill Fries”), explain what you want. ✅ Customize smartly – Some add-ons (like extra cheese or grilled onions) may cost extra. ✅ Be ready to DIY – For unofficial items like Monkey Style Burgers, you might need to assemble them yourself.
Final Thoughts: Unlocking In-N-Out’s Secret Menu
In-N-Out already serves up incredible burgers and fries, but these secret menu hacks make it even better. Whether you’re looking for extra cheese, more crunch, or insane flavor combinations, there’s something for everyone.
Next time you visit In-N-Out, try one of these hidden gems—or create your own!
Did we miss your favorite In-N-Out secret menu item? Let us know in the comments!
