NEW YORK - When Zhao Yong was pursuing his PhD at Yale University in the early 2010s, he was frustrated to learn that some local Chinese restaurants he frequented would no longer be there in the near future due to low profit margins and increasing labor costs.

"Most of them were run by families of the older generations of Chinese immigrants, and the owners had told me their children would not follow in their footsteps," said the environmental science major from northeastern China's Liaoning province.

Zhao craves the taste of home. So, he and six of his college-mates from China saw a big opportunity through this looming crisis, which was to establish a fast-casual chain that could represent the new generation of Chinese restaurants and redefine Chinese food in the United States.

In 2015, the first Junzi Kitchen was opened in New Haven, Connecticut, just across the Yale campus. The menu was mainly composed of chun bing, or flour wraps, and noodle bowls, with a variety of options for customizing by adding meats, vegetables and sauces.

Today, the chain has expanded to five restaurants, three of which are located in Manhattan, New York City.

"As Americans' knowledge and understanding of modern China keeps developing, here lies a huge market for a new generation of Chinese food to grow in America," Zhao, now CEO of Junzi, said in the chain's midtown Manhattan restaurant.

"The Chinese culinary culture is just way too profound for ordinary Americans to appreciate all the dishes," Zhao explained. "Although most of them love Chinese cuisines, they don't go to an ordinary Chinese restaurant everyday, especially for those who live in small cities and the countryside."

That's why Junzi keeps its flavors simple, which means accessible to as many Americans as possible, while staying authentic to Chinese taste buds. Similarly simplified is the way of cooking, as most ingredients are prepared beforehand and laid out for customers to create their favorite combinations, just like in a kitchen.

The interiors of Junzi's five locations also look different from their traditional peers. Designed by some of the co-founders who studied arts and architecture at Yale, they are all simple, clean, bright and chic, or just as Instagrammable as the food.

Zhao believed their strategy of running Junzi could be the trend for promoting Chinese food in the world. The chain is rated 4.5 out of 5 on Yelp, a major online review forum, much higher than other decades-old Chinese food chains.

Grebla has been working in the food industry for 30 years. Though most of the staff members of Junzi are non-Chinese, she said they haven't encountered any cultural shock with the managerial level.

"This is honestly the best company I've worked for as far as how they care about their people," she said. "It's just great to work for a company that has that much passion for what they do, and they want their team to have that passion too."

The Yale-educated entrepreneurs share an ambitious goal of making their brand the world's largest modern Chinese food chain with over 1,000 locations, and are quite confident about Junzi's prospects.

"I think we are not just running a restaurant brand, we are actually building a new cultural symbol of China through food. I think this could be quite meaningful," Zhao said.