It is well known that persons of low socioeconomic position consume generally a less healthy diet. Key determinants of unhealthy eating among disadvantaged individuals include aspects of the family and external environment. Much less is known about family and environmental determinants of healthy eating among social disadvantaged children. The aim of this study was to gain insight into the family and environmental factors underlying resilience to poor nutrition among children and their mothers living in disadvantaged neighbourhoods. Semi-structured interviews were conducted with 38 mother–child pairs (N = 76) from disadvantaged neighbourhoods. Children were selected if they were a healthy weight, consumed adequate intakes of fruit and vegetables and were physically active. Two main themes emerged from the interviews: active strategies from parents to promote healthy eating and external barriers and supports to healthy eating. Mothers believed that exercising control over access to unhealthy food, providing education and encouragement for consumption of healthy food and enabling healthy food options aided their child to eat well. Children did not perceive food advertisements to be major influences on their eating preferences or behaviour. The results of the current study offer insight into potential avenues for nutrition promotion among disadvantaged children.