This contribution gives insights into methodological procedures and epistemological results from a transdisciplinary research process with the peasants’ organisation OCEZ-CNPA Chiapas in South Mexico. Its methodology was based on Paulo Freire’s Popular Education (PE) and its related methodologies, Systematisation of Experiences (SoE) and Participatory Action Research (PAR). The central endeavour of the research was the collective reflection on peasants’ agroecological learning experiences and, through a feedback loop, on the same praxis. The reflective practice consisted of action, research and training and thus, generated actionable, epistemological and methodological knowledge. these three interconnected dimensions of knowledge nourished the pedagogical and political praxis of the peasants’ organisation, as well as the practice and theory of transdisciplinary and participatory research in the context of agroecology.