How to Order Pizza for Large Groups

Ordering pizza for a large group sounds simple until you actually have to do it. How many pizzas for 30 people? What about the vegetarians? Should you order ahead or call day-of? If you've ever stared at an order form trying to figure out whether 12 pizzas is enough for your nephew's graduation party, this guide is for you.

The Math: How Many Pizzas Do You Actually Need?

The standard formula works for almost every scenario: plan on 3 slices per adult and 2 slices per child. A large pizza typically yields 8 slices. Then add one extra pizza for every 10 guests to account for big eaters, seconds, and the inevitable group that camps out by the pizza table.

Here's what that looks like in practice. For 20 adults, you need about 60 slices — that's 8 large pizzas, plus 2 extra for buffer. For 50 adults, it's 150 slices — 19 pizzas, plus 5 extra. Round up, never down. Cold leftovers are a lot better than running out mid-event.

• 10 guests: 5 large pizzas
• 20 guests: 10 large pizzas
• 30 guests: 14 large pizzas
• 50 guests: 24 large pizzas
• 75 guests: 35 large pizzas
• 100 guests: 45 large pizzas

Variety: Don't Order 20 of the Same Pizza

A common mistake is over-indexing on one flavor. Even if everyone says they love pepperoni, variety keeps people happy. The general rule: offer at least 3 different types for groups over 15. For groups over 40, go with 4-5 types. Include at least one cheese-only and one vegetable option — they get eaten more than you'd expect.

A solid breakdown for a 20-pizza order: 6 pepperoni, 4 cheese, 4 Mediterranean or veggie, 3 All Meat, and 3 Margherita. That covers meat lovers, vegetarians, and everyone in between without overcomplicating things.

Timing: When to Place Your Order

For groups under 15, same-day ordering usually works fine. For 15-30 people, place your order at least 24 hours ahead. For anything over 30, call 48-72 hours in advance. Large orders take time to prep, and if you're ordering for a specific time — like a noon lunch meeting or a 6 PM party — the kitchen needs to plan around your order without disrupting regular service.

Confirm your order the day before. Double-check the headcount, the pickup or delivery time, and any special requests. Things change — people drop out, new people get added. A quick confirmation call saves everyone headaches the day of.

Handling Dietary Needs Without Losing Your Mind

Large groups almost always include someone with a dietary restriction. Halal, vegetarian, vegan, gluten sensitivity — the list can get long. The simplest solution is to order from a restaurant that already accommodates those needs without special requests.

At Forni, the entire kitchen is 100% halal. That's one dietary need covered for your entire order without a single phone call. Our menu includes vegetarian options like the Mediterranean and Margherita, and we can accommodate most requests when you order ahead. One restaurant, one order, multiple dietary needs handled.

The biggest mistake people make with large group orders isn't getting the wrong number of pizzas. It's not accounting for variety and dietary needs. Ten pepperoni pizzas might be enough food, but it's not enough options.

Setup Tips: Keeping Pizza Hot and Service Smooth

Pizza cools fast once it's out of the box, especially outdoors. If you're serving at a party or event, keep the boxes closed until people are ready to eat. Set up a serving line rather than spreading pizzas across multiple tables — it prevents some pizzas from being ignored while others get demolished.

• Keep boxes stacked and closed until serving time to retain heat
• Set out pizzas in waves: put half out first, then refresh with the second half 30-40 minutes later
• Use chafing racks or low-temperature warming trays if you have them
• Label the pizzas — a simple card in front of each box saves people from opening every lid
• Put vegetarian and specialty options at the front of the line so they don't get overlooked

Why Pizza Works for Large Groups

There's a reason pizza is the default large-group food. It scales: one pizza feeds 3-4 people, and you can order 5 or 50 with the same amount of effort. It's self-serve: no plates required, no utensils, no serving staff. It's universally liked: in a group of 50 people, pizza has the highest approval rating of any food. And it's cost-effective: at $12.99-$14.99 per pizza, you're feeding each person for about $4-5.

Want to see what's on the menu before you order for your group? View our full menu →

Forni's Catering for Large Groups

We handle large group orders regularly — office lunches, birthday parties, community events, masjid gatherings. Call us at least 48 hours ahead for groups over 20, and we'll help you figure out quantities, variety, and timing. Every pizza is wood-fired, every ingredient is halal, and we can deliver or have it ready for pickup at 5800 Seminary Rd in Falls Church.