Wedding Catering: How to Feed 100 Guests Well
The one thing every guest remembers from a wedding, more than the flowers, more than the dress, more than the music, is whether the food was good. Nobody talks about a beautiful centrepiece on the drive home. They talk about the lamb that was overcooked, the two-hour gap between canapés and the main, or the time they went to a wedding and there just wasn't enough food.
Not enough food is the cardinal sin of wedding catering. A flower arrangement can be a bit underwhelming and nobody will mention it. A flat speech can be forgotten by the dance floor. A wedding where guests went home hungry gets talked about for a decade. Everything else is fixable. That one isn't.
Here's how to feed 100 people well: how much food you actually need, which service style fits your wedding, how to handle dietary requirements without panic, what to look for when comparing caterers, and where this goes wrong when couples treat catering as a line item instead of the foundation of the evening.
How Much Food Is Enough
Guests eat more at weddings than you expect. The excitement, the drinking, the long evening on their feet. Whatever you think is enough, add 15%. Then add another 10% for the two friends who don't eat lunch on the day because they're saving themselves.
The reliable structure for an evening reception:
Canapés during the drinks hour. Six to eight pieces per person. An hour is the standard window between ceremony and dinner, and guests need something to soak up the first round of drinks. Fewer than six pieces and people are hungry by the time they sit down.
Three courses for dinner. Entrée, main, and dessert (or cake as dessert). Two courses work if the canapé round was generous and the main is large. One course is not enough. Couples who do "grazing only" often come back saying guests were asking about food at 9pm.
A late-night snack if the reception runs past 10pm. Chips and aioli, sliders, a cheese station, pizza boxes. Something that hits after the dancing. Costs very little and is one of the most remembered parts of the night.
If you're doing cocktail style with no sit-down dinner, you need 10 to 12 substantial pieces per person minimum, spread across the evening with grazing stations running in between. Undercatering is the single most common guest complaint, and it's also the hardest to fix on the night. Err on the side of too much.
Service Styles and What They Mean
Four main formats. Each changes the feel of the evening, the cost profile, and the logistics.
Plated / Alternate Drop
The most formal. Each guest receives one of two mains, alternated around the table. A beef or a fish. A chicken or a vegetarian. Guests can usually swap with a neighbour if the drop doesn't match their preference.
Pros: Elegant, controlled portions, lower food waste, kitchen can execute precisely, easier to manage allergy plates on a per-seat basis. Cons: Less choice for guests, slower service at scale (kitchens struggle to get 100 plates out hot at the same moment), and the "alternate drop roulette" when your vegetarian main lands in front of the uncle who hates vegetables. Best for: Formal weddings, venues with strong kitchens, older guest lists who expect this format.
Shared Dining / Family Style
Food arrives at the table in large platters. Guests serve themselves and pass plates along.
Pros: Generous and abundant. Relaxed and social (passing food is a bonding activity). Visually impressive. Dietary needs are easier because you can put the gluten-free or vegan platter on every table rather than plating individual dishes. More forgiving on timing because the table can start serving before every platter is down. Cons: More food waste (you're platting to feed the table generously, which means you're over-catering by design). Harder to control portion flow to individual guests. Not ideal for stiff, formal settings. Best for: Most modern weddings. This has become the default choice for couples who want dinner to feel like dinner, not like a catered event.
Buffet
Guests serve themselves from a central station.
Pros: Widest variety. Guests pick what they want. Easiest dietary management because everything is labelled and guests self-select. Cons: Queues, which kill the flow of the evening if the room is big. Less elegant. Food sits under heat lamps and can look tired halfway through service. Some guests go back three times and the last table to be called gets the dregs. The per-head price is often lower than plated, but you're paying for enough food to feed everyone twice. Best for: Casual weddings, venues without strong kitchens, large guest lists where plated service would take two hours.
Cocktail / Grazing
No seated dinner. Substantial canapés and grazing stations throughout the evening.
Pros: Social, flexible, works well in non-traditional venues (galleries, warehouses, backyards), often cheaper per head. No need for a full dining set-up. Cons: Guests with mobility issues need somewhere to sit and eat, which means the room still needs seating clusters. Harder to ensure everyone eats enough. Can feel insubstantial if the canapé rotation is thin. "Cocktail wedding" is shorthand for "cheap" in most guest minds, so the catering has to be visibly generous to overcome that. Best for: Shorter events (three to four hours), couples who want a different vibe, venues that can't accommodate a dining room.
The Dietary Requirements Conversation
Collect dietary information at the RSVP stage, not later. "Any dietary requirements?" is a single line on the RSVP form. The information you get back goes into one list, sorted by name and table.
The common categories: vegetarian, vegan, gluten-free, dairy-free, nut allergy, shellfish allergy, halal, kosher. Your caterer handles these every week and has standard alternatives ready. What they need from you is a clean list, ideally by table, at least two weeks before the wedding so they can plan the kitchen flow.
The real allergy versus preference distinction: don't try to police it. Some guests will say "gluten-free" when they mean "prefer not to eat bread." Some will say "allergy" and mean life-threatening. You cannot tell the difference from a form, and you shouldn't be trying to. Tell the caterer everything and let them handle it. A good caterer will plate the serious allergy separately (a chef brings it out personally) and handle preferences through the menu design.
For the RSVP side of this, our RSVP tracking post covers how to collect dietary info cleanly.
The Cake Question
Three common approaches. Decide which one you're doing before you book the cake, not after.
The cake as dessert. The cake is plated and served as the dessert course. Saves one course off the dinner cost. Make sure there's enough for everyone (a 100-person cake is a real cake, not a showpiece), and that the kitchen plates it rather than leaving it on a table for guests to serve themselves.
Cake alongside dessert. Dessert is served, and the cake is cut and passed around afterwards as an additional option. More food, more cost, and most guests will take a sliver they don't actually eat. Fine if you want both; wasteful if you don't.
Purely ceremonial. The cake is displayed, cut for photos, and then not eaten by most guests. Common if you've ordered a small showpiece cake plus a larger, cheaper "back" cake to feed the room. Or if you've skipped the full cake and are just cutting a tiered dessert for the tradition.
The cutting fee. Some venues charge $2 to $5 per person to cut and serve a cake brought in from outside. At 100 guests, that's up to $500 on top of the cake price. Ask about this before you order a $600 cake from an external baker. Sometimes the venue's in-house cake works out cheaper once the cutting fee is included.
Comparing Wedding Caterers
Don't just compare per-head prices. The number on the quote is not the number you're paying.
What to compare, side by side:
| Factor | Why it matters |
|---|---|
| Per-head price | The starting point. Usually $80 to $180 for 100 guests. |
| What's included | Drinks? Staff? Tableware? Setup and cleanup? Some quotes are "food only." |
| What's extra | Bar staff, cake cutting, corkage, overtime, late-night snacks. |
| Minimum guest count | Many caterers have a 50 or 80 minimum. Below that, you pay for empty seats. |
| Tasting offered | Free, paid, or not at all. Always do one. |
| Venue experience | Have they worked at your venue before? Kitchen facilities matter. |
| Cancellation terms | Deposit refundable? Final count lock date? What if guest numbers drop? |
Build a simple comparison table for your shortlist. Three caterers, the factors above down the left, their quotes across. The caterer with the lowest per-head price often isn't the cheapest once "what's extra" is filled in. The tasting and the venue experience often matter more than the top-line number.
For the broader vendor-contract pattern, our wedding venue questions post covers what to ask any supplier before signing.
The Tasting Is Non-Negotiable
Always do a tasting before you commit. You're paying $80 to $180 per person to feed 100 guests. Try the food before you put your name on that.
The tasting should be the actual menu you're ordering, cooked by the actual kitchen, served the way it'll be served on the day. Take your partner. Take notes. Be honest. "The lamb was dry" is useful feedback for the caterer. "It was all lovely" is not, especially if it wasn't.
A good caterer wants the feedback. They'll ask what worked, what didn't, and adjust the menu accordingly. A bad caterer gets defensive, explains why the dry lamb was actually fine, and tells you the wedding-day version will be different. Run.
If a caterer won't offer a tasting at all, or only offers one for a fee that's not credited against your final invoice, that's a flag. Paid tastings are fine. Locked-out tastings are not.
The Timeline Impact
Catering flow drives the whole reception timeline. Get this wrong and the rest of the evening collapses inward.
A working sequence for a 6pm ceremony:
- 6:00 to 6:20: ceremony
- 6:20 to 7:30: cocktail hour, canapés flowing continuously, guests move to reception space
- 7:30: seated, welcome from MC
- 7:35 to 7:50: entrée served
- 7:50 to 8:00: speeches one (parents)
- 8:00 to 8:30: main served
- 8:30 to 8:45: speeches two (couple)
- 8:45 to 9:15: dessert / cake served
- 9:15: dance floor opens
If dinner service starts late, everything cascades. Guests drink more on empty stomachs, energy drops, and the DJ is playing to a room that's still waiting for a main course. Your caterer will push you to lock the timing at least two weeks out because their kitchen flow depends on it. Don't resist. Give them the schedule and treat it as a firm booking, not a guideline.
For the full day-of sequencing, our wedding day timeline post walks through the running order.
Where Catering Gets Expensive Without You Noticing
The catering quote you accepted at 90 guests is not the catering cost when 107 guests show up. Per-head costs multiply with every confirmed RSVP, and the per-person number hides the total. A $20 per-head difference between two caterers is $2,000 across 100 guests. A $5 late-night snack add-on becomes $500. The "just a few more guests" that your mum is lobbying for is catering money, not an abstract number.
The catering decision is a guest-count decision disguised. Mamahinga makes that visible. Your catering line recalculates the moment an RSVP lands. You know the real cost of the menu before you commit to it, not when the invoice arrives. Dietary requirements you've collected flow into the catering view automatically so your caterer gets one clean list instead of you assembling it from text threads at week nine. The numbers stay current. The guest list and the catering budget are the same data.
For the line-item view of the catering budget inside the bigger picture, our wedding budget guide walks through every category. The catering decision sits in the middle of a longer planning sequence that starts with budget and venue; the how to plan a wedding guide covers that full arc. For the specific multiplier effect your guest list is creating, the cost of adding more guests post covers that.
A Few Mistakes to Avoid
Every wedding catering post-mortem surfaces the same set of avoidable errors.
Ordering by price alone. The cheapest quote is cheap for a reason. Either the portions are small, the staff count is low, or the kitchen is cutting corners on ingredients. You will notice on the day.
Forgetting to feed your suppliers. Photographers, videographers, celebrant, band, DJ, coordinator. Most will be with you for eight to ten hours. Supplier meals are included by most caterers at a reduced rate ($35 to $55 per head). Don't skip this. A hungry photographer takes worse photos.
Under-ordering alcohol. Similar problem to food. If the bar runs out at 9pm, the party ends at 9pm. Budget 4 to 5 drinks per adult guest for a four-hour reception. More if your crowd drinks.
Locking the menu too early. Some caterers will lock a menu 12 months out. You don't want this. Menus should be finalised 6 to 8 weeks before the wedding, once the guest list and dietary requirements are stable.
Skipping the supplier meal for the caterer themselves. If your caterer has a team of 10 people working your wedding, they've already fed themselves. You don't need to add meals for them on top. Check the contract for what's included.
Three Questions Before You Sign the Contract
Before you sign the catering contract, answer three questions with your partner. Have you done the tasting? Do you know, line by line, what is and isn't included in the quote? And have you set the menu lock-in date 6 to 8 weeks before the wedding, not earlier?
If the answer to any of these is no, don't sign yet. Catering is too big a line to commit to on incomplete information, and the fixes after signing are always harder than the questions before.
Food is not a detail. It's the foundation of the evening. Your guests will dance, laugh, and celebrate regardless of whether the napkins match the flowers. But they need to be well fed to do it, and they need to be fed on time. Feed them well. Feed them enough. And feed them when the timeline says you will. The wedding photos can be retouched. A hungry reception cannot.