Planning deli catering is easier when you separate the guest count from the menu format. This guide gives you repeatable estimates for sandwich trays, individual sandwiches, meat-and-cheese platters, bagels, sides, desserts, dietary accommodations, delivery timing, and a simple way to adjust the order when your event size or menu changes.
Overview
The right amount of deli food depends on three questions: how many people are eating, whether the food is a full meal or a light spread, and how many substantial items each guest can choose from. A midday office lunch usually needs more filling food than an open-house reception where guests are also sampling other dishes.
As a starting point, plan on one full sandwich per adult for a standard lunch, with an additional buffer for larger appetites or a menu made up mostly of sandwiches. For a mixed spread with salads, sides, fruit, and dessert, reduce the sandwich estimate modestly rather than assuming every guest will eat a complete sandwich.
For a sandwich platter, ask the deli how many portions the tray is designed to provide and whether the sandwiches are whole, halved, or quartered. A tray labeled for 10 people may mean 10 full sandwiches, 20 halves, or a lighter lunch portion. Portion language varies, so the deli menu and a quick confirmation call are more reliable than the tray name alone.
For related ordering considerations, see the guide to choosing sandwich trays, bagel platters, and party packages. If you are comparing individual menu items, the deli menu price guide can help you distinguish food cost from delivery, service, and ordering fees.
How to estimate
Use this four-step method before browsing catering trays deli menus or placing an online order.
- Set the eating headcount. Start with confirmed guests, then account for likely additions. For a workplace order, include employees who may join at the last minute. For a family gathering, count children separately if they will eat smaller portions.
- Choose the meal style. Use a full-meal estimate for lunch or dinner. Use a lighter estimate for a meeting with snacks, a reception with other food, or a spread served between meals.
- Convert portions into menu units. If each guest receives half a sandwich, two halves equal one full sandwich. If a platter provides 12 half-sandwich portions, it serves six people at two halves each.
- Add a controlled buffer. A practical buffer is usually around 10% for a meal with a confirmed headcount. Increase it when attendance is uncertain, the event runs for several hours, or the menu has one especially popular item. Avoid adding the same buffer separately to every category, or the order can grow unnecessarily large.
A simple formula is:
Required portions = guests × portions per guest × adjustment factor
For example, 24 guests receiving two half-sandwiches each, with a 10% buffer, requires 52.8 half portions. Round up to 54 halves, or 27 full sandwiches. If a deli sells trays in fixed sizes, order the smallest combination that meets or slightly exceeds that total.
Inputs and assumptions
Sandwiches and sandwich platters
For a standard lunch, begin with one full sandwich per adult. If sandwiches are cut into halves, plan on two halves per adult. Quartered sandwiches work well for variety: two to four quarters per person may be appropriate depending on the other food available and the size of each quarter.
For a mixed group, order a range of familiar fillings rather than putting the entire quantity into one specialty sandwich. A balanced selection might include one or two popular meat choices, a poultry or lighter option, and at least one vegetarian sandwich. Confirm whether condiments, lettuce, tomato, pickles, and bread choices are included or need to be added separately.
Meat-and-cheese platters
For a platter served with bread, rolls, or crackers, estimate about 4 to 6 ounces of combined meat and cheese per person for a light meal or substantial appetizer. Move toward the higher end when the platter is the main food. Add bread and serving utensils to the order if they are not included.
Bagels and breakfast catering
For a breakfast meeting, start with one bagel per person, then add more when the gathering lasts several hours or bagels are the primary food. Provide a mixture of plain, savory, and sweet options, with cream cheese or spreads in several flavors. A bagel platter should also account for guests who prefer fruit, yogurt, eggs, or another non-bagel item.
Sides, salads, and soups
Choose one substantial side per person when sandwiches are the main meal. Potato salad, pasta salad, slaw, chips, pickles, and soup can fill that role, but portion sizes differ by deli. If you order several sides, divide the total rather than ordering a full serving of each for every guest. For example, 30 guests might share three side selections, each sized for roughly 10 to 15 portions, depending on the menu.
Desserts and dietary accommodations
For a meal with dessert, one small dessert portion per guest is a reasonable starting point. Assorted cookies, rugelach, brownies, or sliced cake are easier to distribute than large individual pastries. The deli dessert guide offers ideas for building a varied dessert selection.
Ask guests about vegetarian, vegan, gluten-free, kosher, halal, and common allergen needs before ordering. Do not assume that a menu description guarantees a specific preparation standard. Confirm ingredients, separate packaging, cross-contact procedures, and whether the deli can accommodate the request. Label each special meal clearly and order a small amount of extra suitable food if a guest may need more than one portion.
Worked examples
Office lunch for 18 people
Assume the lunch is the main meal and most guests will eat a full sandwich. Start with 18 sandwiches and add a modest buffer, bringing the target to about 20 sandwiches. Select several fillings, request half cuts for easier sampling, and add one side portion per person. If there are vegetarian or other dietary needs, count those meals first and distribute the remaining sandwiches among the general menu.
Family gathering for 30 people
Assume a varied spread with sandwiches, a meat-and-cheese platter, salads, fruit, and dessert. Rather than ordering 30 full sandwiches plus full portions of everything else, use a lighter sandwich estimate: around 15 to 24 full-sandwich equivalents, depending on the time of day and the amount of other food. Add enough platter ingredients for several ounces per person, two or three shared sides, and one dessert portion per guest. Children and guests arriving late may reduce the required total, while a long event may justify the higher end.
Breakfast meeting for 12 people
Start with 12 bagels, assorted across the group, plus spreads. Add fruit or another breakfast item if the meeting lasts beyond a short morning session. If coffee, eggs, or hot food are also being served, the bagel count can remain close to one per person; if bagels are the only food, add a small buffer and provide more than one spread.
Before finalizing any example, check the actual restaurant menu with prices, tray serving notes, minimum order requirements, pickup windows, and delivery charges. Menus change, and a package described as a “serves 10” option may use a different portion assumption from another deli.
When to recalculate
Revisit the estimate whenever one of the main inputs changes: the guest count, event duration, meal time, menu format, dietary mix, or available budget. Recalculate if a sandwich tray is replaced with individual orders, if the deli changes its portion sizes, or if delivery timing requires food to arrive significantly before the meal.
Pricing should also be checked at the time of ordering. Compare the menu subtotal with delivery, service, packaging, and possible setup charges. For a closer comparison between pickup and delivery, see takeout versus delivery from a deli.
To place the order, write down the confirmed headcount, the target number of full or half sandwich portions, side quantities, dessert portions, dietary meals, serving supplies, delivery address, arrival window, and contact person. Confirm the final total with the deli rather than relying only on a generic calculator. Then check the order when it arrives: count the trays, verify special meals, refrigerate perishable food promptly, and set out labels so guests can choose confidently.
