Eleven restaurants in a Hong Kong mall have responded to a call by green groups to start offering smaller-portion meals.
The restaurants in Olympican City take HK$1 ($0.12) off the bill if customers ask for less rice with their order.
According to the environment department of Hong Kong, leftovers account for a third of the region's solid waste. An earlier survey by an environmental group found that Hongkong residents left one third of the rice when eating out.