So what's inside your lunch box today?

Online food delivery companies sprouting up in leading cities to cater for hungry mid-day office workers

A click of a smartphone button has revolutionized the one-hour lunch break and turned those snaking lines of customers outside city restaurants into a distant memory.

With the rise of online food delivery companies, customers are now surrounded by an array of options that have triggered a boom in the online-to offline, or O2O, business.