This case study describes a consultancy project undertaken by a trainee health psychologist for a university based in the United Kingdom. The aim of the consultancy was to develop and deliver a workshop for student nurses with the aim of helping to improve their understanding of the health care needs of transgender people. The consultancy client, a lecturer at the university, requested the inclusion of lived experience in the workshop; this informed the decision to collaborate with local transgender people in the development and delivery of workshop content. Key successes noted in feedback collected from student nurses who attended the workshops included opportunities to talk directly with transgender people, which helped to increase their confidence in discussing transgender health with patients in the future. From the perspective of a trainee health psychologist, this case study explores the role of evaluation when undertaking consultancy work. This process of evaluation will focus on the importance of evidencing that the needs of the client have been met, as well as providing information to support the future practice of the consultant as a reflective and continually developing professional.