This article examines the social and cultural organisation of learning and community change in a largely new immigrant and under-resourced neighbourhood in the US. Situating our investigation within a local social movement for food justice, we use an ethnographic lens to study how learning is made to become consequential across relationships between people, across activities, and contexts. Our four-year ethnographic study highlights how community health workers ("promotoras") build relationships "de confianza" as a tool that mediated new forms of action in the focal neighbourhood. We demonstrate how relationships "de confianza" have laid a foundation to (a) mediate social networks to organise for change and (b) promote solidarity through the response to urgent needs, creating a more holistic model of community health and sustainability. Drawing attention to relational resources foregrounds social actors and their ingenuity, promoting equity-oriented scale-making.