This chapter explores the idea and practice of symbiotic food system systems and how these can be regenerative of society and ecology. It starts with the elaboration of the food system feeding most of the 5 million residents of the fast-growing city of Dar es Salaam in Tanzania. This is based on qualitative research that traced important foods from urban eaters back to the primary producers. What makes this food system work is explored, revealing how the multitudes of actors manage the tension between autonomy and solidarity in interdependent relations with no large or vertically integrated corporate structures. The regenerative practices and potentials of this food system are shown in areas such as reducing waste, expanding agroecological practices, and contributing to vibrant urban communities. Debates that arise from the promotion of such a food system are addressed, from the importance (or not) of economic growth to the role of the state. Finally, more specific suggestions are made for building symbiotic and regenerative food systems. There is great potential in better understanding and enabling what people are already doing in symbiotic relations to produce and distribute food in ways that are regenerative and serve the majority of people.