The Government of Canada's Mental Health Promotion Innovation Fund (MHP-IF) is a platform for learning across diverse projects, facilitated by a Knowledge Development and Exchange Hub. MHP-IF projects were getting underway before the COVID-19 pandemic escalated in 2020 and dramatically shifted their circumstances and activities. Using storytelling methods, this study explored 20 project experiences during the first year of the pandemic, including how and why assumptions, plans, and activities were adapted; early signals about what was working well or not; and how adaptations influenced equity, access, and cultural safety. Project teams generally navigated through four stages: pausing, re-thinking, adapting, and settling into adjustments. Within and across these stages, projects addressed similar processes, including meeting fundamental needs of participants and project teams, managing unanticipated benefits, and engaging with online formats. All projects experienced the pandemic's influence of amplifying both inequities and public and political attention on mental health. This study provides experiential evidence from diverse settings and populations in Canada about pandemic adaptations. The multi-project model and storytelling methods can usefully contribute to additional research, including ways to address inequities and promote cultural safety.