The goal of this study is to evaluate the effects of a novel, mail-based meal delivery intervention among individuals receiving MOUD on household food security status. The main question it aims to answer is:

• Will participants randomized to the NE+MD intervention will demonstrate greater reductions in USDA FSS scores from intake to Study Week 24 than NE participants?

Participants with OUD and FI will be randomly assigned to one of two 24-week experimental conditions: Nutritional Education alone (NE) or NE + Meal Delivery (NE+MD).

NE control participants will receive brief NE, a list of FI-related resources in their community, and assistance with contacting any resources of interest.

NE+MD participants will receive the same educational platform plus commercial weekly meal deliveries directly to the participant's home (6 meals per week per household member).

All participants will complete monthly follow-up assessments throughout the 24-week study measuring food security status, psychosocial functioning, and biometric measures of health. All participants will also complete monthly follow-up assessments for 6 months post-intervention.

Inclusion Criteria:

• >18 years old
• receiving methadone or buprenorphine treatment for OUD
• meet criteria for current FI as measured by the 18-item US Household Food Security Survey (FSS; Economic Research Service, USDA, 2012)

Exclusion Criteria:

• Significant psychiatric or medical illness
• Pregnant or nursing