HEALing Matters is an online professional development training program being implemented across the Victorian out‐of‐home care sector. HEALing Matters uses a trauma‐informed philosophy to guide carers' understanding of the link between young people's healthy lifestyle behaviours and improved physical and psychosocial outcomes. This article reports the findings of a qualitative evaluation, which sought to understand whether participation in HEALing Matters fostered a sense of commitment, dedication and/or the introduction of new practices to create a healthy “home.” Semistructured interviews were conducted with 27 residential carers who completed the training and transcripts underwent thematic analysis. Four major themes evidencing healthy lifestyle behaviours were developed: (1) promotion of a healthy eating environment, (2) making physical activity a habit, (3) building connection through food and physical activity and (4) improved predictability and consistency. Implementation of HEALing Matters facilitated positive changes in health behaviours, supported carers to use food and activity to provide responsive caregiving and created a sense of safety and security through the introduction of household routines. The findings emphasise the importance of upskilling carers in preventative health practices and approaches to best support the health and well‐being of young people in care.