If you think you know everything Cook Out has to offer, think again. The beloved Southern fast-food chain — famous for its chargrilled burgers, affordable tray meals, and 40-plus milkshake flavors — has a whole other side that never makes it onto the menu board. Regulars call it the Cook Out secret menu, and once you know what to ask for, your entire ordering experience changes.
Here is a complete breakdown of the hidden items, off-menu hacks, and custom combinations that loyal fans have been quietly ordering for years.
What Exactly Is the Cook Out Secret Menu?
To be clear, Cook Out does not have an official printed secret menu tucked behind the counter. There is no code word or insider handshake required at the drive-thru. What the secret menu actually refers to is the restaurant’s surprisingly flexible ordering system — one that lets customers mix toppings, combine sides, and blend milkshake flavors in ways that go way beyond what the board displays. The magic is in how you ask.
Once you understand that the tray system is essentially a build-your-own food playground, the possibilities open up fast.
Secret Burgers and Main Dishes
The Everything Burger
This is the holy grail for burger lovers. Start with a double cheeseburger and load it with every available topping — pickles, lettuce, tomatoes, chili, onion rings, grilled onions, and cheese. It is messy, over-the-top, and completely worth it. There is no official name for it; just describe what you want clearly, and the staff will put it together.
The Peanut Butter Bacon Burger
It sounds unusual, but this combination has built up a loyal fanbase. Order a regular burger and ask for peanut butter spread on the beef patty, then top it with crispy bacon. The sweet, salty, and savory balance is genuinely addictive. It is one of those off-menu orders that sounds wrong until you try it once.
The Quesadilla Burger
This is a mash-up that Cook Out can pull off at most locations. Ask for a beef quesadilla and request a hamburger patty added inside. Throw in grilled onions, jalapeños, or BBQ sauce for the full experience. Pair it with onion rings and you have a meal that no other fast-food chain is putting together at this price point.
The Double Dog Tray
The tray system is where most secrets live. Instead of ordering a single hot dog as your entree, ask for two hot dogs on your tray and pick two sides. You can customize each hot dog differently — slaw on one, chili and onions on the other. It is maximum variety for the standard tray price.
Firecracker Hot Dog
For spice lovers, this one delivers. Order a regular hot dog and ask the staff to add chili, chopped onions, mustard, ketchup, and Cajun seasoning. If hot sauce is available, request that too. It turns a simple hot dog into something with genuine kick.
Hidden Sides Worth Ordering
Cook Out Style Fries (Loaded Fries)
The fries are solid on their own, but the secret version takes them somewhere else entirely. Ask for chili, cheese, and onions loaded over your fries. Think of it as a Southern twist on chili cheese fries, hearty, messy, and built for sharing. Some fans also ask for bacon and grilled onions on top for a smokier version.
Hushpuppies
These golden cornmeal fritters are a Southern staple that Cook Out offers at many locations but does not heavily advertise. Crispy on the outside, soft in the center, they pair perfectly with BBQ or burgers. Ask for them as a side on your tray — not every location carries them, so it is worth asking first.
Fried Okra
Another Southern classic hiding in plain sight. Sliced okra fried in seasoned batter, crispy and slightly tangy. Availability varies by location, but if your local Cook Out has it, it is one of the better side upgrades on the hidden list.
Grilled Cheese
Yes, Cook Out can make a grilled cheese sandwich. It is typically done on a toasted bun with melted cheese, and you can customize it with bacon, tomato, or even a burger patty if you want something heartier. Ask for it as a side on your tray — most locations will accommodate the request.
The Milkshake Secret Menu
Cook Out’s shakes are already legendary, but the off-menu combinations take them to a different level entirely.
M&M Milkshake
A fan favorite for anyone who likes texture in their dessert. Start with a vanilla or chocolate base and ask for M&M pieces mixed in. The candy shell crunch against the thick shake is unexpectedly satisfying.
Oreo Cookie Dough Shake
Ask for a vanilla milkshake with crushed Oreos, whipped cream, and a sprinkle of cookie dough mixed in. It is closer to a dessert than a drink, and the flavor lingers long after the cup is empty.
Cheesecake Mix-In Shakes
This is where Cook Out’s shake game gets truly creative. Ask for cheesecake blended into any shake flavor. Popular combinations include cheesecake with banana pudding, cheesecake with caramel fudge, and cheesecake with strawberry and Oreo. Once you try a cheesecake base, going back to a plain shake feels like a downgrade.
Caramel Cappuccino Shake
For coffee lovers, this one is a hidden gem. Request a cappuccino milkshake with caramel added in. The result is essentially a Southern-style frappuccino — rich, cold, and sweet with a real coffee backbone.
Float-Style Milkshake
Ask for your milkshake flavor combined with a splash of soda — Sprite or Coke work best. A Vanilla Coke Float Shake or a Cherry Sprite Shake cuts through the thickness of the shake with a fizzy sweetness that makes for a genuinely refreshing twist. Give them a heads-up that this one takes a little extra time.
Dual-Flavor Blends
The simplest secret on the shake menu: just ask to mix two flavors. Popular combinations include chocolate with banana pudding, peanut butter with banana, cherry with chocolate, and caramel with Oreo. These blended shakes produce flavors that are richer and more complex than anything on the standard menu board.
How to Order Like a Pro
Since none of these items are officially listed, how you order matters. A few tips to keep things smooth:
Be specific. Do not just ask for “the secret menu.” Describe exactly what you want — ingredients, combinations, and toppings. The clearer you are, the easier it is for staff to help you.
Go during off-peak hours. Custom orders take more time. Pulling up during a late-night rush and asking for a quesadilla burger with five modifications is going to frustrate everyone involved.
Be polite. These items are not standard, and employees are not required to make them. A friendly attitude goes a long way toward getting exactly what you want.
Know that availability varies. Not every location stocks fried okra, hushpuppies, or every milkshake add-in. Ask before committing to an order.
Final Word
The Cook Out secret menu is not about a list of forbidden items. It is about understanding that this chain gives you more flexibility than most fast-food restaurants are willing to offer. With a tray system built for customization and a milkshake menu that doubles as a blank canvas, the only limit is knowing what to ask for. Next time you pull up to the window, skip the standard order and try something from this list. Odds are, you will not go back.