A Hong Kong transplant says the capital's food scene was leaving him homesick, until he opened his own restaurants, Liu Zhihua reports.

In 2009, after working on the Chinese mainland for a few years, Hong Kong native Andrew Lam was becoming hungry for the foods he'd grown up with.

"Beijing people call migrants living and working in Beijing 'beipiao', and we are also beipiao. We come from the south, and now live in the north, and miss the flavor of our home," Lam says.