Informal ready-to-eat food vending is an important, cheap, convenient, accessible and readily available urban food supply sector that has become an increasingly important part of the diets of people in developing cities in Africa and throughout other contexts in the Global South. Over decades, despite challenges associated with health and hygiene, street foods have been informally accepted as part of the urban food supply system, particularly among the urban poor. Despite the importance of street foods to food security and employment needs in urban Nigeria and elsewhere, very little is known about the governance arrangements (whether formal or informal) revolving around their food provisioning practices. The paper explores governance arrangements that steer and shape food provisioning practices in Ibadan, Nigeria. Taking a social practice approach, the paper analyses the interconnections between governance and ready-to-eat food vending practices. It doing so, it draws on insights generated through a qualitative study incorporating in-depth interviews and participant observation methods to understand different governance arrangements revolving around food vending practices. The findings reveal that formal and informal governance structures are jointly steering and shaping practices of informal ready-to-eat food vending. They furthermore highlight the crucial role informal middlemen fulfill in informal food governance chains. These insights provide new avenues for thinking about food governance of urban food supply systems in terms of co-governance between formal and informal actors. They also provide empirical evidence that can aid policy application and implementation on urban food supply systems going forward. The paper concludes by discussing the potential of a co-governance informal food sector framework that recognizes and encompasses the formal-informal nature of the food sector. Such an approach recognizes and involves informal middlemen in the governance of informal ready-to-eat street food vending embedded in a larger framework of food system governance.