The investigators now propose to leverage the infrastructure of the recently funded cluster randomized controlled trial, designed to determine the effectiveness of Shamba Maisha on HIV clinical and other health outcomes of HIV-infected adults in Western Kenya (the 'parent study'). They propose to assess the impact of the intervention on nutrition, health, and neurobehavioral development outcomes for HIV-affected children. The parent study will include 8 matched pairs of health facilities, randomized in a 1:1 ratio to the intervention and control arms, enrolling 44 HIV-infected adult participants per facility (N=704 adults, 50% female) and followed for 2 years. The proposed study will enroll and follow HIV-affected children (enrolled at age 6 to <36 months) and their primary caregiver (age >18 years) who reside in compound/homesteads of participants in the parent study (1:1 ratio, intervention and control). The study will include a minimum of 352 children (n=176 per study arm) with their primary caregiver. Specific aims are: Aim 1. To determine the effect of Shamba Maisha on nutritional, health, and neurobehavioral development outcomes of HIV-affected children under 5 years old. The investigators hypothesize that children living in intervention households will have greater somatic growth (weight-for-age, height-for-age, and weight-for-height z-scores)(primary outcome), reduced morbidity and hospitalizations, and improved neurobehavioral development outcomes (secondary outcomes) compared to children living in households that do not receive the intervention. The investigators will collect data on children's nutrition, health, and neurobehavioral development outcomes over a 2-year follow-up period. Aim 2. To understand the pathways through which Shamba Maisha may improve nutritional, health, and neurobehavioral development outcomes of HIV-affected children. The investigators hypothesize that improvements in household food security and household wealth will contribute to improved child outcomes through improvements in: child diet, caregiver physical and mental health, caregiver empowerment, and home environment pathways, and this study will provide important details about those pathways. Aim 3. To evaluate the incremental cost and cost-effectiveness of the intervention with respect to children's health outcomes (in coordination with the parent study's analysis for adults). The investigators will translate observed reduced morbidity to averted Disability Adjusted Life Years (DALYs), using disability weights from the Global Burden of Disease, estimate net costs considering the intervention and averted health care costs, and calculate incremental cost-effectiveness, as the net cost per DALY averted.