In a restaurant landscape dominated by burgers, pizza and sandwiches, a centuries-old Japanese staple is quietly carving out its place in the American mainstream. Onigiri (rice formed into handheld shapes and wrapped in seaweed) has been a daily food in Japan for generations. But in the United States, it’s still early in its adoption curve. For Onigilly founder Koji Kanematsu, the appeal was obvious long before the market caught up.

"Sushi is a special-occasion food, but onigiri is like sandwiches," Kanematsu said. "It's something you can eat between meetings, at your desk, or while commuting. We're bringing that same level of convenience to American consumers. It is so convenient and healthy, and people get it once they try it. I believe it will become even more popular. After 10 years, we will be more visible to everyone and I believe that onigiri will become like burritos. They weren’t as popular 30 years ago, but they have become ubiquitous.”

A Familiar Format With a Global Twist

At its core, Onigilly succeeds because it doesn’t feel foreign, even if it’s new. 

“American consumers love convenient foods like sandwiches and burgers,” Kanematsu said. “So we brought the onigilly concept from Japan. It’s handy and it’s healthy, and it’s not expensive like sushi. It’s a combination of America’s love of convenience and Japanese tradition.”

This perfectly aligns with today’s dining habits. Modern diners are searching for options that fit their busy lives and affordable meals that still feel substantial, as well as healthy alternatives to many of the options out there. Onigiri delivers on all three.

“We even use brown rice as an alternative and kelp powder to keep it healthy,” Kanematsu said. “Our concept is really a natural energy bar. It has higher nutrition than many other options out there.”

Built for the Way Americans Eat Today

Beyond its cultural appeal, onigiri fits neatly into the operational realities of modern fast-casual dining

“Our menu is designed to accommodate different hunger levels,” Kanematsu said. “Some customers come in for a quick onigiri snack, while others order multiple onigiri with a side of Japanese fried chicken or an egg omelet. There’s something for everyone.”

That daypart flexibility is critical. Concepts that can capture multiple occasions tend to outperform those locked into a single use case.

Adapting Without Losing Authenticity

One of the biggest challenges in introducing a culturally rooted food to a new market is striking the right balance between authenticity and accessibility.

"We started with a food cart in San Francisco," Kanematsu said. "At first, we struggled because people didn't know what onigiri was. Many expected sushi and were confused when they saw cooked ingredients instead of raw fish. Based on customer feedback, we created an American-style onigiri: two rice patties with fillings like teriyaki chicken, spicy shrimp, garlic and bacon."

Onigilly has approached that challenge intentionally. “We tried over 100 different flavors,” Kanematsu said. “Most of them are American flavors that we adjusted. We intentionally want to keep some traditions, but adjust to better align with U.S. tastes.”

That process wasn’t immediate. “It’s been 18 years since I started, and in the first five years we struggled a lot because the product was too niche,” he said. “Gradually, little by little, our concept is becoming more popular.”

That patience has paid off. Today, the brand has built a menu that introduces consumers to onigiri while meeting them where they are.

Simplicity as a Competitive Advantage

Where onigiri becomes especially compelling is behind the scenes. Unlike many restaurant concepts that grow more complex as they scale, Onigilly is built on simplicity and that simplicity translates directly into operational efficiency.

“We design our concept like Subway. You don’t need a hood or a kitchen space,” Kanematsu said. “You just need a refrigerator and a rice cooker.”

That streamlined setup unlocks several advantages: lower build-out costs, smaller footprints (including kiosks and inline spaces), faster openings and reduced labor complexity. The total investment required to start an Onigilly franchise ranges from $265,132 to $606,976, significantly lower than most traditional QSR concepts. 

The limited menu further reinforces that efficiency. “We don’t need a chef. We don’t need a lot of stuff,” Kanematsu said. “We only handle a small number of ingredients.”

For franchisees, that means fewer variables to manage and a model that’s easier to replicate across multiple locations.

A Scalable Model in an Underserved Category

While many restaurant categories in the U.S. are saturated, onigiri remains relatively untapped.

“We are still in the early stages so we have fewer competitors,” Kanematsu said. “For new franchisees, you can be in a very unique position within your community.”

While onigiri may be a new discovery for the average American, that novelty is exactly where the opportunity lies for entrepreneurs. By pairing cultural roots with a rock-solid operational model, the Onigilly franchise concept is ready to scale in markets across the country.

To find out more information on costs to buy this franchise, please visit https://1851franchise.com/onigilly.

In a restaurant landscape dominated by burgers, pizza and sandwiches, a centuries-old Japanese staple is quietly carving out its place in the American mainstream. Onigiri (rice formed into handheld shapes and wrapped in seaweed) has been a daily food in Japan for generations. But in the United States, it’s still early in its adoption curve. For Onigilly founder Koji Kanematsu, the appeal was obvious long before the market caught up.

"Sushi is a special-occasion food, but onigiri is like sandwiches," Kanematsu said. "It's something you can eat between meetings, at your desk, or while commuting. We're bringing that same level of convenience to American consumers. It is so convenient and healthy, and people get it once they try it. I believe it will become even more popular. After 10 years, we will be more visible to everyone and I believe that onigiri will become like burritos. They weren’t as popular 30 years ago, but they have become ubiquitous.”

A Familiar Format With a Global Twist

At its core, Onigilly succeeds because it doesn’t feel foreign, even if it’s new. 

“American consumers love convenient foods like sandwiches and burgers,” Kanematsu said. “So we brought the onigilly concept from Japan. It’s handy and it’s healthy, and it’s not expensive like sushi. It’s a combination of America’s love of convenience and Japanese tradition.”

This perfectly aligns with today’s dining habits. Modern diners are searching for options that fit their busy lives and affordable meals that still feel substantial, as well as healthy alternatives to many of the options out there. Onigiri delivers on all three.

“We even use brown rice as an alternative and kelp powder to keep it healthy,” Kanematsu said. “Our concept is really a natural energy bar. It has higher nutrition than many other options out there.”

Built for the Way Americans Eat Today

Beyond its cultural appeal, onigiri fits neatly into the operational realities of modern fast-casual dining

“Our menu is designed to accommodate different hunger levels,” Kanematsu said. “Some customers come in for a quick onigiri snack, while others order multiple onigiri with a side of Japanese fried chicken or an egg omelet. There’s something for everyone.”

That daypart flexibility is critical. Concepts that can capture multiple occasions tend to outperform those locked into a single use case.

Adapting Without Losing Authenticity

One of the biggest challenges in introducing a culturally rooted food to a new market is striking the right balance between authenticity and accessibility.

"We started with a food cart in San Francisco," Kanematsu said. "At first, we struggled because people didn't know what onigiri was. Many expected sushi and were confused when they saw cooked ingredients instead of raw fish. Based on customer feedback, we created an American-style onigiri: two rice patties with fillings like teriyaki chicken, spicy shrimp, garlic and bacon."

Onigilly has approached that challenge intentionally. “We tried over 100 different flavors,” Kanematsu said. “Most of them are American flavors that we adjusted. We intentionally want to keep some traditions, but adjust to better align with U.S. tastes.”

That process wasn’t immediate. “It’s been 18 years since I started, and in the first five years we struggled a lot because the product was too niche,” he said. “Gradually, little by little, our concept is becoming more popular.”

That patience has paid off. Today, the brand has built a menu that introduces consumers to onigiri while meeting them where they are.

Simplicity as a Competitive Advantage

Where onigiri becomes especially compelling is behind the scenes. Unlike many restaurant concepts that grow more complex as they scale, Onigilly is built on simplicity and that simplicity translates directly into operational efficiency.

“We design our concept like Subway. You don’t need a hood or a kitchen space,” Kanematsu said. “You just need a refrigerator and a rice cooker.”

That streamlined setup unlocks several advantages: lower build-out costs, smaller footprints (including kiosks and inline spaces), faster openings and reduced labor complexity. The total investment required to start an Onigilly franchise ranges from $265,132 to $606,976, significantly lower than most traditional QSR concepts. 

The limited menu further reinforces that efficiency. “We don’t need a chef. We don’t need a lot of stuff,” Kanematsu said. “We only handle a small number of ingredients.”

For franchisees, that means fewer variables to manage and a model that’s easier to replicate across multiple locations.

A Scalable Model in an Underserved Category

While many restaurant categories in the U.S. are saturated, onigiri remains relatively untapped.

“We are still in the early stages so we have fewer competitors,” Kanematsu said. “For new franchisees, you can be in a very unique position within your community.”

While onigiri may be a new discovery for the average American, that novelty is exactly where the opportunity lies for entrepreneurs. By pairing cultural roots with a rock-solid operational model, the Onigilly franchise concept is ready to scale in markets across the country.

To find out more information on costs to buy this franchise, please visit https://1851franchise.com/onigilly.

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Luca Piacentini

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Luca Piacentini

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1851 Managing Editor

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