Rainbow Royal Burger in Honolulu: What's in It and Where to Find It
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If you've heard about the Rainbow Royal burger in Honolulu, you might be wondering whether it's a real menu item or just another name for a cheeseburger.
The answer is simple: the Rainbow Royal is one of our burgers at Rainbow Drive-In.
It comes with two hamburger patties, cheese, lettuce, tomato, onion, and our special yellow sauce on a white bun.
While we're known for local-style plate lunches, burgers have their own place on our menu. They're an option when you're craving something handheld instead of a full plate with rice and macaroni salad.
We've been serving local comfort food in Kapahulu since 1961. Here's what makes the Rainbow Royal different from our other burgers, where you can find it, and what to know before ordering.
What Is the Rainbow Royal Burger?
The Rainbow Royal is a double-patty cheeseburger on Rainbow Drive-In's regular burger menu.
According to our published menu, it includes:
Two hamburger patties
Cheese
Lettuce
Tomato
Onion
Our special yellow sauce
A white bun
The combination is straightforward, but those ingredients distinguish it from our regular Hamburger and Cheeseburger.
With two patties, the Rainbow Royal offers a larger burger than our single-patty selections.
The fresh vegetables provide contrast to the meat and cheese, while the special yellow sauce is part of the flavor you'll find across several of our burgers.
If you're looking for a double cheeseburger with traditional toppings, the Rainbow Royal is the menu item to check.
You can find its current description on our Kapahulu menu.
What Makes the Rainbow Royal Different?
The Rainbow Royal isn't a novelty burger with an unusually long list of toppings.
Its main distinction is the combination of two patties, cheese, vegetables, and our yellow sauce.
That makes it different from burgers designed around specialty toppings, elaborate sauces, or unconventional buns.
The menu description is also useful if you have strong preferences about your burger.
Someone who wants cheese and vegetables might prefer the Royal. Someone who wants fewer toppings may be happier with our regular Hamburger or Cheeseburger.
There's no need to order the largest burger simply because you're visiting for the first time.
Choosing the right one comes down to what you're craving.
Rainbow Royal vs. Rainbow Special: What's the Difference?
These two menu items have similar names, so it's easy to confuse them.
Both use two hamburger patties and include lettuce, tomato, onion, and special yellow sauce.
The key difference is cheese.
Burger | Patties | Cheese | Lettuce, tomato, and onion |
Rainbow Royal | Two | Yes | Yes |
Rainbow Special | Two | No cheese listed | Yes |
Cheeseburger | One | Yes | Not included in the standard description |
Hamburger | One | No cheese listed | Not included in the standard description |
If you want a double-patty burger with cheese and vegetables, choose the Rainbow Royal.
If you like the same double-patty combination without cheese, consider the Rainbow Special.
If one patty is enough for you, our Cheeseburger or Hamburger may be a better fit.
It's a small distinction, but knowing the difference before ordering helps you get the burger you actually want.
What's in Rainbow Drive-In's Special Yellow Sauce?
Our special yellow sauce is one of the ingredients listed on the Rainbow Royal.
You'll also see it mentioned on other burgers in our published menu.
We don't publish the complete ingredient formula in the menu description, so we won't guess at what's in it or claim that it follows a particular recipe.
If you have a food allergy or need to avoid a specific ingredient, contact the restaurant directly rather than relying on assumptions about the sauce's appearance or flavor.
For anyone simply exploring our menu, it's helpful to know that the yellow sauce is part of the standard Rainbow Royal combination.
If you have a preference about sauces or toppings, review the available ordering options before submitting your order.
Where Can You Get a Rainbow Royal on Oʻahu?
The Rainbow Royal is listed at both of our current Rainbow Drive-In locations.
Kapahulu, Honolulu
Our original location is at:
3308 Kanaina Avenue Honolulu, HI 96815
This is the Kapahulu location where we've served local-style comfort food since 1961.
It's an option if you're staying in Waikīkī, exploring the Diamond Head area, or already spending time in Honolulu.
Our official Kapahulu menu lists the Rainbow Royal under Sandwiches and Burgers.
You can also review the Kapahulu online ordering menu to see its current ordering options.
Pearlridge, Aiea
Our Pearlridge location is at:
98-1005 Moanalua Road Aiea, HI 96701
The Pearlridge menu also lists the Rainbow Royal, so there's no need to travel to Kapahulu solely to find this burger if you're already in Aiea.
However, our two locations have some differences in their menus and operating schedules.
Before visiting either location, check our locations and hours.
How Much Does the Rainbow Royal Cost?
Our official Kapahulu and Pearlridge menus listed the Rainbow Royal at $7.95 when checked in October 2026.
That is the burger's published menu price, not necessarily the total cost of a complete meal.
Fries, drinks, additions, applicable taxes, and any ordering-platform charges can affect the final amount.
Prices also change, so the current menu is the right place to confirm what you'll pay.
If you're comparing burger options, look at the ingredients rather than the price alone.
The Rainbow Royal includes two patties and cheese, while the Rainbow Special has two patties without cheese listed.
A regular Cheeseburger includes one patty and cheese.
Those distinctions make it easier to decide which menu item suits your appetite.
What Can You Order With a Rainbow Royal?
A Rainbow Royal can be ordered as a burger on its own, but you may want something on the side.
At Kapahulu, our published menu includes options such as French Fries, Tater Tots, and Chili Fries.
If you're craving something familiar, regular fries can be a straightforward accompaniment.
If you'd like a different flavor, Chili Fries are another menu option.
For a drink, our menu includes soft drinks and our Slush, a strawberry-flavored frozen drink.
We also serve the Slush Float, which adds vanilla ice cream.
These are choices to consider rather than a required combination. The Rainbow Royal is already a double-patty burger, so decide whether you want sides based on your appetite.
Is the Rainbow Royal the Same as a Plate Lunch?
No. The Rainbow Royal is listed under our Sandwiches and Burgers section, not our plate-lunch menu.
A typical Rainbow Drive-In plate lunch includes an entrée, two scoops of rice, and one scoop of macaroni salad.
The Rainbow Royal comes on a bun with its listed toppings.
That's a useful distinction if you're unfamiliar with our menu.
If you're looking for a burger you can eat by hand, the Rainbow Royal may be the better choice.
If you're in the mood for rice, macaroni salad, and an entrée such as BBQ Beef or Boneless Chicken With Gravy, our plate-lunch menu offers a different kind of meal.
Neither needs to substitute for the other.
What Guests Say About Rainbow Drive-In
People visit Rainbow Drive-In for different reasons. Some come for familiar plate lunches, while others enjoy our burgers and sandwiches.
We appreciate hearing about the dishes guests choose and their experiences at our locations.
Here are a couple of reviews from our customers.
Ready to Try the Rainbow Royal?
If the Rainbow Royal is the burger you're looking for, there's no mystery about what to order.
Look for Rainbow Royal on our menu: two hamburger patties, cheese, lettuce, tomato, onion, and special yellow sauce.
You can find it at our Kapahulu and Pearlridge locations, subject to current availability.
And if you're deciding between the Rainbow Royal and Rainbow Special, remember that cheese is the main difference.
For current menu details and location information, visit our Rainbow Drive-In menus.
Mahalo, and enjoy your burger.
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