Throughout the late 20th and early 21st centuries, the culture of higher education has adjusted to meet growing enrollment numbers in online courses. To prepare faculty for successful implementation of online learning, faculty training and developments are more important now than ever. Despite opportunities for development and training to prepare for online teaching, faculty members continue to cite challenges related to pedagogy, technology, and administration. Closer examinations of current faculty development opportunities reveal an emphasis of technical and skill acquisition that leads to limited holistic development of faculty members (Broud & Brew, 2013; Fabriz et. al., 2021; Klassen et. al., 2011; Renta-Davids et. al., 2016). It is necessary to understand what online teaching practices faculty develop. This qualitative case study explores faculty lessons learned from a professional development workshop related to online teaching, using teacher self-efficacy and reflective practice as lenses. In this study, I interviewed fourteen faculty members who participated in a professional development related to online teaching at a 4-year, public institution in the southeastern United States. In these interviews, I explored participant lessons from a professional development workshop and how their online teaching practices changed since the conclusion of the workshop. I also collected written reflections from these participants on how they envision future opportunities for teaching professional development. Throughout the data analysis, I explored patterns and themes related to the theoretical frameworks of teacher self-efficacy and reflective practice (Schon; 1983; Tschannen-Moran et al., 1998). Results from this study offer insights to post-secondary institutions and academic developers on how to develop effective faculty development offerings, particularly related to addressing pedagogical gaps related to online teaching. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]