Gastronomy represents a significant part of the cultural heritage and identity of tourist destinations; however, related scientific literature is scarce. Considering these aspects within the field of tourism and hospitality, and selecting the articles written in English indexed in the Web of Science and Scopus from 2001 to 2020, the objective of this research is twofold: (1) to present a bibliometric analysis of the literature on gastronomic heritage (71 articles); and (2) to analyze some aspects (main topics, frequency of key terms, methods, and data sources) of the research on case studies in Asia and Europe (46 articles), as they are the most prominent regions on the representative list of the intangible cultural heritage of humanity (UNESCO). The study shows the temporal evolution of the literature on gastronomic heritage in parallel with UNESCO’s actions on cultural heritage. The results reveal that most articles relate gastronomic heritage to the sustainability of tourist destinations, and that European case studies address sustainability more than Asian studies do. Regarding the methodology to analyze Asian and European case studies, qualitative research predominates. Within quantitative studies, the use of online content generated by consumers and marketers as a data source is rare.