English
Español
Français
Português
In-N-Out's menu board fits on a single sign: burgers, fries, shakes, drinks. That's it. But regulars know there's a whole second menu, and In-N-Out openly acknowledges many of these items. Here's every popular one, with estimated prices.
Disclaimer: This is an independent, unofficial guide and is not affiliated with, endorsed by or sponsored by In-N-Out Burger. All trademarks belong to their owners. Prices, menu items, deals and hours may change and can vary by location. Please check the official In-N-Out Burger website or app for the latest information: www.in-n-out.com
The Secret Menu at a Glance
| Item | What it is | Est. price |
|---|---|---|
| Animal Style burger | Mustard-grilled patty, extra spread, pickles, grilled onions | +$0.50 – $1.00 over base |
| Animal Style Fries | Fries with cheese, spread and grilled onions | $4.75 – $6.25 |
| Protein Style | Burger wrapped in lettuce, no bun | Same as base burger |
| 3×3 | Three patties, three slices of cheese | $7.50 – $9.50 |
| 4×4 | Four patties, four slices of cheese | $8.75 – $11.25 |
| Flying Dutchman | Two patties, two cheese slices, nothing else | $4.75 – $6.25 |
| Grilled Cheese | Bun, cheese, lettuce, tomato, spread, no meat | $3.25 – $4.50 |
| Well-Done / Light Fries | Crispier or softer fries | Same as fries |
| Whole grilled onion | Whole grilled onion slice instead of chopped | Free |
| Neapolitan Shake | Chocolate, vanilla and strawberry together | Same as shake |
| Root Beer Float | Root beer with vanilla shake | $3.25 – $4.50 |
Animal Style
The most famous secret. The patty is cooked with mustard on the grill, then topped with extra spread, pickles and grilled onions. You can order Animal Style Fries too: fries topped with melted cheese, spread and grilled onions. About 750 calories per order.
Protein Style
Your burger wrapped in lettuce instead of a bun. Great for keto or low-carb diets, and it costs the same as the regular burger.
3×3 and 4×4
Extra patties and cheese. In-N-Out generally caps burgers at 4×4 at most locations today.
Flying Dutchman
Two patties and two slices of cheese melted together. No bun, no veggies, no sauce. Pure meat and cheese, very keto-friendly.
Grilled Cheese
A vegetarian option: bun, two slices of cheese, lettuce, tomato and spread. Add grilled onions for extra flavor.
Fry Options
- Well-done: crispier
- Light well: a little crispier
- Light: softer
- Animal Style: loaded
"Monkey Style"
A fan creation: Animal Style Fries placed inside an Animal Style burger. Not all locations will make it, so ask politely or build it yourself.
Drinks and Shakes
- Neapolitan shake: all three flavors
- Root beer float: root beer + vanilla shake
- Arnold Palmer: lemonade and iced tea
Frequently Asked Questions
What is Animal Style at In-N-Out?
A mustard-grilled patty with extra spread, pickles and grilled onions.
How much are Animal Style Fries?
Typically $4.75 to $6.25, depending on location.
Can I still order a 100×100?
No. Most In-N-Out locations limit burgers to 4×4.
Is Protein Style cheaper?
It usually costs the same as the regular burger.
Is the In-N-Out secret menu official?
Many items are acknowledged by In-N-Out, but they're not listed on the menu board.
The Bottom Line
Start with a Double-Double Animal Style and Animal Style Fries. Then explore: try Protein Style for low-carb, a Flying Dutchman for pure protein, or a Neapolitan shake for dessert.
Last updated: October 11, 2026. Prices are estimates and vary by location.