Bioethics is a diverse field that accommodates a broad range of perspectives and disciplines. The recent explosion of literature on methods in interdisciplinary and empirical ethics might appear, however, to overshadow the fact that 'bioethics' has long been an interdisciplinary field. The Interdisciplinary and Empirical Ethics Network (IEEN) was established, with funding from the Wellcome Trust, to facilitate critical and constructive discussion around the nature of this disciplinary diversity and shift focus away from the 'empirical turn', towards the ongoing development of bioethics as an evolving field of interdisciplinary study. In April 2012 the IEEN organized a workshop at the Centre for Public Policy Research, King's College London, dedicated to discussing the relationship between aims and methods in interdisciplinary and empirical bioethics. This paper reports on that first meeting.