Objective To assess whether adult involvement in a youth cooking intervention program resulted in improvements of adult perceptions of youth nutrition and activity knowledge and behaviors and family-related outcomes. A second objective was to examine adult responses for differences by income, food assistance use, and household size. Use of Theory or Research Many strategies for childhood obesity prevention have included experiential cooking programs involving parents in various ways. However, evidence is lacking on parent involvement, perceptions, and outcomes. Target Audience Fourth and 5th grade youth at two Title I elementary schools and their families. Program Description The WeCook: Fun with Food and Fitness program was a 12-week, out-of-school time food preparation, nutrition and physical activity program that also engaged families in a comprehensive, multifaceted approach. Evaluation Methods Pre- and post-surveys were administered to youth and their parent/caregiver. Sixty matched youth and adult surveys were included in the analysis. The program was a treatment-only design. Results Results demonstrated a significant increase in adults’ perceptions of their youth's ability to choose healthy snacks and be more active. Further analysis demonstrated significant differences between adult reported demographic characteristics. Lower income adults reported increased youth sedentary habits, adults using food assistance reported decreased family breakfast frequency, and adults with smaller household sizes reported decreased youth activity before school. Youth reported increases in their nutrition and physical activity knowledge, ability to choose healthy snacks, and consumption of sweets post-program. Adult and youth responses at post-assessment were positively correlated in the areas of healthy eating and activity behaviors, such as the perceived ability of youth to eat fruit and healthy snacks, choose water instead of sweetened beverages, and be active after school. Conclusions Further research is needed on adult and family outcomes from youth cooking programs to understand the adult and youth health relationship and encourage obesity prevention programs to increase their focus on the family component and associated assessments. Funding USDA.