Interdisciplinary research is a valuable approach to addressing complex real-world problems. However, undergraduate research mentoring is discussed as an activity that happens in disciplinary silos where the mentor and student scholar share a disciplinary background. By transcending traditional academic divisions, we argue that mentors can train a new generation of scholars who think innovatively and create integrative research questions. We examined a sample of undergraduate students and their faculty mentors to determine the extent to which interdisciplinary research teams exist at George Mason University. Results indicated that interdisciplinary research teams are rare and faculty rank was their main predictor. University administrations can make specific choices regarding recognition and support for interdisciplinary undergraduate research mentoring that also advance institutional mission and values.