Under the current trend of curriculum reform in higher education worldwide, many institutions have taken the initiative to develop English for Specific Academic Purposes (ESAP) courses to cater for students' diverse needs for disciplinary learning and future professional practices. This paper illustrates the pedagogical innovations in an ESAP course to facilitate undergraduates’ disciplinary learning at an international university in Hong Kong. Based on the data collected from students and discipline teachers, we, as the course developers, reflected upon the opportunities and challenges in implementing the revamped ESAP course. Our reflections reveal the importance of promoting flipped learning and peer feedback practices in the ESAP classroom and interdisciplinary collaboration between ESAP course developers and discipline teachers. This paper will be of interest not only to ESAP teachers but also to discipline teachers who intend to promote best practices for effective disciplinary studies through English teaching and learning in higher education. Copyright © 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.