Background: Engineers are socialized to value rational approaches to problem solving. A lack of awareness of how engineers use different decision-making approaches is problematic because it perpetuates the ongoing development of inequitable engineering designs and contributes to a lack of inclusion in the field. Although researchers have explored how engineering students are socialized, further work is needed to understand students' beliefs about different decision-making approaches. Purpose/Hypothesis: We explored the espoused beliefs of undergraduate students about technical, empathic, experience-based, and guess-based approaches to engineering design decisions. Design/Method: We conducted semistructured one-on-one interviews with 20 senior engineering students at the conclusion of their capstone design experience. We used a combination of deductive and inductive data condensation approaches to generate categories of beliefs. Results: We identified a total of nine categories of beliefs, organized by approach. Although students' espoused beliefs did reflect the emphasis on technical approaches present in their socialization, they also described technical approaches as limited and overvalued. Conclusion: The landscape of beliefs presented make explicit both the challenges and the opportunities that students' beliefs play as the backdrop for any efforts of engineering educators to develop engineers as effective and equitable engineering designers.