This document summarizes a research project that aims to co-design a reusable food container with university students to promote its usage and minimize environmental impact. The research will involve participants engaging in activities using a provided toolkit to understand motivations and perspectives on reusable containers. Activities include photo sorting, a 5-day lunch journaling app, and prototyping improvements with clay. Data from the activities will be analyzed to inform the redesign of a functional and sustainable reusable food container.