If you know, you know. In-N-Out Burger may have a famously simple menu — just burgers, fries, and shakes — but behind that minimalist board lies a not-so-secret world of customizable greatness. Call it a cult following or a burger lover’s rite of passage, but exploring the In-N-Out “secret menu” is like unlocking a cheat code to the ultimate fast food experience.
Ready to level up your next order? Here are the hidden gems you have to try at In-N-Out.
- Animal Style Everything. The MVP of In-N-Out’s secret menu. An Animal Style burger includes mustard grilled onto the patty, extra pickles, grilled onions, and a generous smear of their legendary spread. Want to kick it up further? Order Animal Style Fries — topped with cheese, grilled onions, and that same iconic sauce. Messy? Yes. Worth it? Absolutely.
- Protein Style. Cutting carbs or just not into buns? Ask for your burger Protein Style and it’ll be wrapped in a crisp lettuce leaf instead. It’s fresh, crunchy, and a surprisingly satisfying alternative.
- 3×3 or 4×4 (a.k.a. The Stacker Specials). Want more meat? More cheese? Ask for a 3×3 (three patties, three slices of cheese) or a 4×4. Yes, that’s four layers of beef and cheese. You can go even bigger… but be warned: there’s no official limit. (Okay, maybe your dignity is the limit.)
- Grilled Cheese. Not in the mood for meat? You can still get that In-N-Out flavor by ordering a Grilled Cheese. It comes with the same buns, cheese, lettuce, tomato, and spread — just no patty. Perfect for vegetarians or anyone in need of a lighter bite.
- Flying Dutchman. This one’s for the purists (or maybe the carnivores): two burger patties, two slices of melted cheese — no bun, no toppings, no distractions. That’s it. A cheesy, meaty, low-carb snack with big protein energy.
- Well-Done Fries. Think In-N-Out’s fries are a little too soft? There’s a fix. Ask for Well-Done Fries — they’ll be crispier, golden-brown, and extra satisfying. Want to get fancy? Order them Animal Style and Well-Done for the ultimate fry experience.
- Neapolitan Shake. Can’t choose between vanilla, chocolate, or strawberry? Don’t. The Neapolitan Shake layers all three into a swirled dessert dream. It’s a perfectly balanced, low-effort way to taste all the classics at once.
- Chopped Chilies. Want to spice things up? Add chopped yellow chilies to any burger for a tangy, flavorful kick. It’s a lesser-known option, but once you try it, you may never go back.
- “Mustard Grilled” Hack. Even if you don’t go full Animal Style, you can still ask for your burger mustard grilled. The patty is grilled with mustard directly on the flat top, giving it a rich, caramelized crust that’s wildly underrated.
- Roadkill Fries (Unofficial, But Legendary). This one’s so secret it’s unofficial — and not every location will do it. Roadkill Fries are Animal Style Fries with a chopped-up burger patty thrown on top. It’s indulgent, slightly chaotic, and completely unforgettable.
In-N-Out’s secret menu proves that simplicity doesn’t mean limitation. With just a few key ingredients and a whole lot of creativity, you can remix your meal into something uniquely yours. Whether you’re going double-meat, no bun, or full Animal, the beauty of the secret menu is that it’s yours to explore — no password required.
Kyle
Kyle is a long-time content writer with experience across a wide breadth of topics—including food and dietary wellness. Gluten- and lactose-sensitive, Kyle brings a unique perspective to writing about fast food, to help others with dietary restrictions better-navigate the menus of major fast food chains. His favorite fast food chain is Chipotle.
