A valuable supplement to student evaluations of teaching (SETs) is the mid-semester feedback (MSF) technique, an intervention that can facilitate meaningful improvement of the teaching and learning experience. Scheduling time for an MSF enables a systematic, formative evaluation of instruction on a specific student population in a given semester. The authors introduce and provide an overview of the MSF, unpack the procedure step-by-step, share research on the MSF, and offer guidance for implementing several variations for instructors who find themselves short on resources and time.