This paper addresses the need for, and ultimately proposes, an educational framework to develop competencies in attending to ethical issues in mental health and substance use health (MHSUH) in healthcare ethics consultation (HCEC). Given the prevalence and stigma associated with MHSUH, it is crucial for healthcare ethicists to approach such matters skillfully. A literature review was conducted in the areas of bioethics, health professions education, and stigma studies, followed by quality improvement interviews with content experts to gather feedback on the framework’s strengths, limitations, and anticipated utility. The proposed framework describes three key concepts: first, integrating self-reflexive practices into formal, informal, and hidden curricula; second, embedding structural humility into teaching methods and contexts of learning; and third, striking a balance between critical consciousness and compassion in dialogue. The proposed educational framework has the potential to help HCEC learners enhance their understanding and awareness of ethical issues related to structural stigma and MHSUH. Moreover, context-specific learning, particularly in MHSUH, can play a significant role in promoting competency-building among healthcare ethicists, allowing them to address issues of social justice effectively in their practice. Further dialogue is encouraged within the healthcare ethics community to further develop the concepts described in this framework.