Competitive growth in today's economy requires engineers to possess innovation skills to create novel designs. An entrepreneurial mindset enables people to think and then act in a certain way to discover, evaluate, and exploit opportunities by understanding the value proposition of a new idea, identifying the potential market, and adapting ideas to meet the needs and desires of various customer segments. However, secondary students often lack formalized opportunities to look for new opportunities for innovative design, act upon their design ideas, and transform those ideas into reliable investments of time and resources during their school experiences. Therefore, we propose that secondary engineering teachers can employ established entrepreneurial pedagogical interventions as a means to promote more authentic engineering design activities in STEM learning environments. The interventions can aid students in making more informed design decisions, engage them in developing viable solutions to authentic problems while investigating opportunities for exploiting their ideas, and thus, support the innovation capabilities of our future. Consequently, this article highlights methods in which to integrate an entrepreneurial mindset within high school STEM classrooms, specifically those focused on engineering.