This current study measured the impact of a one-time semester-long course-based civic engagement activity on student learning and participant impact, particularly participants' willingness to engage in community dialogue and promote awareness of social justice issues within their communities. The service-learning project involved on-campus and online students from three criminal justice courses and a hybrid format event titled "Finding Common Ground: Social Justice Issues Surrounding Mental Health & Mental Illness & Disorders" at a Midwestern teaching institution. The two-hour event included roundtable discussions to promote open dialogue about mental health and mental health illness and disorders. Learning and self-impact were measured via self-constructed questions and the Civic Engagement Short Scale Plus (CES[superscript 2+]). Results indicated increased endorsement for community engagement and positive qualitative feedback on self-empowerment. The findings provide insights into the potential benefits of service-learning activities, such as mental health community roundtables, for fostering community dialogue, personal growth, and social justice activism. The insights gained from the current study can inform future planning and enhancement of civic engagement initiatives while also contributing to developing community-based education and outreach strategies.