
You’ll be tempted to try it because it’s a hard-to-get flavor, but tasting this delectable treat comes with a price.
Omusubi Gonbei is a restaurant known for its rice balls, which are called “onigiri” or “omusubi” in Japanese. The restaurant has a major presence in the Kanto area; so much so that if you ask a Tokyoite where to get rice balls, Omusubi Gonbei will often be their first suggestion.
But did you know that a small number of their restaurants also sell taiyaki, the fish-shaped, stuffed snack that can be either savory or sweet? Our Japanese-language reporter Yuuichiro Wasai only just found this out himself by accident when looking at the restaurant’s website. Naturally, that meant he had to go to one of those branches and try one. But now that he’s been and gone, there is something he has to warn you about–just in case you fall into the same trap he did.
Omusubi Gonbei isn’t as prevalent in Tokyo as, say, Starbucks or McDonald’s, but Yuuichiro had the impression that it has about the same number of branches as Lotteria; a good amount scattered fairly evenly throughout the city, but not on every corner block. In fact, when he looked it up, it turned out that both Omusubi Gonbei and Lotteria currently have about 40 branches in Tokyo.
Among those, there are just two Omusubi Gonbei branches that sell taiyaki: the Seibu Shinjuku Pepe branch, which is near our office, and the Frente Sengawa branch, which is just west of the city center.
Yuuichiro went to the Seibu Shinjuku Pepe branch. They had a sign for the taiyaki in the window that was both reassuring and surprising. The “Hokkaido Tsubuan” taiyaki (150 yen [US$1.03]), shown at the top of the ad stuffed with red bean paste from Hokkaido, was expected, but Yuuichiro was surprised to see they also had a “Mentai Jaga Cheese” taiyaki (170 yen), which had a filling of spicy cod roe, potatoes, and cheese.
Red bean paste is the most common and traditional filling, but he had never heard of Mentai Jaga Cheese flavor before. It was almost as unusual as okonomiyaki-flavored taiyaki! He almost had to doubt that it was even legit, but he could practically hear the snack saying, “Yeah, I’m a taiyaki, too. You got a problem with that? In fact, I’m not just a taiyaki, I’m a Gonbei-yaki, an original sweet from Omusubi Gonbei. If I seem weird to you it’s because you’re constrained by your concept of taiyaki, and you don’t understand the concept of ‘Gonbei-yaki.'”
Yuuichiro felt challenged by the taiyaki’s–or rather, the Gonbei-yaki’s confrontational tone, so he decided to order it alongside the red bean variety. Besides, when he Googled it, he also learned that the Mentai Jaga Cheese taiyaki is a pretty rare menu item, so he really had no choice but to try it. For journalism purposes, of course.
By ordering both a sweet and savory variety, Yuuichiro realized he’d soon be falling into an infinite loop of sweet and salty. And when his taste test finally commenced, he couldn’t stop taking alternating bites of each one! He could probably eat ten of these in seconds. A bite of salty, a bite of sweet, a bite of salty, a bite of sweet…
The Hokkaido Tsubuan, which was what he originally intended to eat, was slightly different from other taiyaki in that it was crispier, apparently because its batter is made with rice flour. Even so, it was just as delicious as an ordinary, soft taiyaki. It was a bit smaller, but worth it for the unique texture. And the red bean paste was stuffed in, even to the tail, which is unusual!
However, where that crispy batter came in clutch was in the Mentai Jaga Cheese taiyaki. It brought it to a completely different level, well past ordinary to “unbelievably delicious!”
In other words, whether or not you become addicted to Omusubi Gonbei’s taiyaki depends on whether you order their Mentai Jaga Cheese flavor. And it’s easy to order one on a whim, because who can resist a limited-edition flavor? Ergo, the Mentai Jaga Cheese presents a clear and present danger for being irresistibly delicious, and Yuuichiro now understands why they only sell them at select stores: to limit the damage done to society.
“Hats off to Omusubi Donbei!!” That’s what Yuuichiro thought as he tumbled into the pit of cheesy, spicy potato taiyaki bliss.
Images © SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]







Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Visiting Japan’s one-and-only, and only-for-a-limited-time, Dragon Ball noodle restaurant[Photos]
Studio Ghibli now sells Ursula’s backpack from Kiki’s Delivery Service at its anime shop in Japan
Mister Donut unveils new sakura doughnuts for cherry blossom season 2026
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Japanese government planning higher ticket prices for foreign tourists at Tokyo National Museum
Visiting Japan’s one-and-only, and only-for-a-limited-time, Dragon Ball noodle restaurant[Photos]
Studio Ghibli now sells Ursula’s backpack from Kiki’s Delivery Service at its anime shop in Japan
Mister Donut unveils new sakura doughnuts for cherry blossom season 2026
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
One Piece creator has hidden secret of anime treasure’s identity in chest at bottom of real-world ocean
Japan asked to vote on what to officially call insanely hot days
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Which of Japan’s main coffee shop chains is best for a caffeine-free life?
What’s the best way to spend 1,000 yen at Kura Sushi?【Japan Super Budget Dining】
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Is Tokyo Station’s startlingly expensive wagyu bento boxed lunch worth its high price?[Taste test]
Live-action One Piece’s Luffy teaches Sesame Street’s Elmo a Japanese word for friendship[Video]
Sakura Festival in Chiyoda mixes illuminations, boats, music, and Rilakkuma in the heart of Tokyo
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s newest Shinkansen has no seats…or passengers [Video]
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
One Piece creator has hidden secret of anime treasure’s identity in chest at bottom of real-world ocean
Japan asked to vote on what to officially call insanely hot days
Silicone testicle covers banned from Japanese sauna following cups being left behind and on shelves
Which of Japan’s main coffee shop chains is best for a caffeine-free life?
What’s the best way to spend 1,000 yen at Kura Sushi?【Japan Super Budget Dining】
Kentucky matcha?!? KFC Japan now has frozen green tea dessert beverages
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Full-color anime art wall appears in Tokyo station as Jujutsu Kaisen returns to Shibuya【Photos】
Kyoto’s breathtaking, mouthwatering matcha parfait bars get new autumn-only flavor
Nara deer shikadamari phenomenon continues to baffle visitors at Nara park
192-year-old Kyoto tea company now makes matcha Margherita pizzas
What’s the minimum amount of money Japanese women want their husbands to earn? Survey investigates
Baskin-Robbins Japan gets extra-Japanese with new kanmidokoro-inspired flavors and sundaes