Urban Ghanaian residential kitchens are significant contributors to food waste, posing challenges for sustainable development and resource management. A mixed-methods approach involving surveys and qualitative interviews across four communities, employing structured data collection tools. Households exhibited a strong preference for using leftovers creatively, with over 70% indicating they would reuse or repurpose food waste daily. Behavioural economics interventions can effectively reduce food waste in Ghanaian urban kitchens by leveraging household preferences and creative solutions. Promote community-based initiatives that encourage sharing of recipes for leftover use, alongside educational campaigns on the benefits of reducing food waste.