Racialized, low-income, and migrant communities in East and Northeast Calgary were disproportionately impacted by COVID-19, yet faced vaccine access barriers. This article is a formative evaluation of a low-barrier, community-engaged vaccine outreach clinic in Calgary, Alberta, Canada, on June 5–6, 2021. Stakeholder respondents felt the clinic was effective (99.2%), efficient (96.9%), patient-centered (92.3%), and safe (90.8%), and that the outreach model was scalable 94.6% (123/130). Suggested improvements include increased time for clinic planning and promotion, more multilingual staff, and further efforts to reduce accessibility barriers, such as priority check-in for people with disabilities. These findings support the value of community-engaged outreach to improve vaccine equity among other marginalized newcomer communities.