An estimated 1.3 billion tons of food is lost or wasted every year, adding to the growing problem of CO2 emissions and global warming. Consequently, there is an urgent need to address this issue. However, while a lot of research in Human-Computer-Interaction has been conducted about food waste in private households, there is still a lack of research about people’s food waste at a retail level in restaurants. This paper explores the potential of gamification in the design of apps intended to support more sustainable food consumption behavior. This study is centered on the existing Too Good To Go app and examines current user behavior and perception through quantitative and qualitative methods. Then through employment of design frameworks and iterative prototype cycles the potential to encourage active sustainable food consumption is examined. Findings show that there are many challenges stopping users from actively using the current app more often.  Findings also suggest that gamification has the potential to increase users’ motivation to use the app beyond reasons of only saving food. The implications of this paper could present new opportunities for applying gamification to reduce food waste that could inspire researchers and practitioners to explore the theme further.