Although combining case study teaching with group learning is a popular approach for teaching business courses, pedagogical challenges arise, particularly in undergraduate classes. To address these challenges, we developed an instructional innovation called the Team-Based Learning and Evaluation (TaBLE) Case Method, which increased student engagement and deepened learning in an undergraduate introductory management course. The TaBLE Case Method is built upon specific principles of team-based learning, and comprises phases that meld together individual preparation and group participation before, during and after class. Our evaluation of the TaBLE Case Method highlights how it enhances group learning by: increasing student motivation to prepare, attend and engage; creating individual accountability for group goals; fostering critical thinking and creative debate; and making theory-practice links more visible. We also discuss the method's "shadowsides" and limitations, and provide guidance on how the method can be adapted for a variety of class sizes and delivery modes.