In this paper, we establish gastrospaces as a subject of philosophical inquiry and an item for policy agendas. We first explain their political value, as key sites where members of liberal democratic societies can develop the capacity for a sense of justice and the capacity to form, revise, and pursue a conception of the good. Integrating political philosophy with analytic ontology, we then unfold a theoretical framework for gastrospaces: first, we show the limits of the concept of “third place;” second, (...) we lay out the foundations for an ontological model of gastrospaces; third, we introduce five features of gastrospaces that connect their ontology with their political value and with the realization of justice goals. We conclude by briefly illustrating three potential levels of intervention concerning the design, use, and modification of gastrospaces: institutions, keepers, and users. (shrink)