Family Reunion Food: How Much to Make for 30, 50, or 100

Reunion food planning is two problems wearing one apron: how much (the math problem) and who brings it(the coordination problem). Get the first wrong and you run out of chicken at 1pm; get the second wrong and eleven relatives arrive holding potato salad. Both have clean solutions. Numbers first.

The math: what to actually buy or assign

Caterers plan roughly 1 lb of total food per adult (about ⅔ lb for kids) across the whole meal. For an all-afternoon reunion where people graze, round up. Here's that math done for the classic cookout menu — quantities are as-served:

Mains

Sides & extras

Drinks & ice (the perennially forgotten)

Three adjustments: hot day → +50% on drinks and ice; lots of teenagers → +25% on mains; all-day event → plan a second lighter round (snack table) for the 4pm slump.

But first: get a real headcount

Every number above hangs off attendance, and reunion headcounts are notoriously mushy — “we're coming!” can mean two people or a van of seven. Before you multiply anything, collect RSVPs with plus-one counts and dietary needs in one place, with a deadline 4–6 weeks out. Plan quantities on confirmed yeses plus half the maybes.

The coordination: potluck without chaos

The fix for eleven potato salads is specific slots with counts, published where everyone can see what's claimed. For a 50-person reunion:

• Mains ×5 (each feeds ~10) — or the hosts grill and skip this row
• Sides ×8 · Salads ×3 · Desserts ×5
• Drinks ×4 · Ice ×2 (assign it — ice never volunteers itself)
• Plates/cutlery/napkins ×1 · Coolers ×2
• Setup crew ×3 · Grill duty ×2 · Cleanup crew ×3

Let claimers add a note (“Sides — mac & cheese”) so duplicates die inside categories too. The full playbook for running the sheet — including why paper clipboards and spreadsheets stall — is in the online sign-up sheet guide.

Day-of logistics people forget

• Food safety window: nothing perishable sits out more than 2 hours (1 hour above 90°F). Stagger mayo-based dishes into coolers and swap fresh bowls out.
• Serving flow: one long table, both sides serving, plates at the start, drinks at a separate station — halves the line.
• Label dishes with a card: name + who made it + allergy flags (nuts, dairy, gluten). Your RSVP dietary list tells you which flags matter this year.
• Leftovers plan: announce it before eating (“bring containers!”) or the cleanup crew inherits 30 lbs of beans.

Food is one workstream of the whole production — the master timeline is the family reunion planning checklist, and the headcount machinery is family reunion RSVPs.