Quantities
Taco bar for 75 people: how much of everything?
For a taco bar that is the main meal, plan on 31 lb of raw ground beef and about 250 taco shells for 75 people. That is three tacos a head, 1.5 oz of cooked meat in each, and 10 per cent spare so the last people through the line still get a full plate.
The beef number is the one people get wrong. Ground beef loses about a quarter of its weight when you cook and drain it. The 372 oz of cooked meat on the line starts as 496 oz raw, which is 31 one-pound packs. Plan on two large pans or a couple of roasters to cook it, and start earlier than you think.
The whole table, for 75 people
| What | Amount | In ounces | What to buy | Working |
|---|---|---|---|---|
| Ground beef, raw | 31 lb | 496 oz | 31 × 1 lb pack | 1.5 oz cooked a taco, 25% cook loss |
| Taco shells or tortillas | 248 | — | 21 × 12 shells | 3 a head, plus 10% |
| Shredded cheese | 6.5 lb | 104 oz | 13 × 8 oz bag | 1.25 oz a head |
| Shredded lettuce | 8 lb | 128 oz | 16 × 8 oz bag | 1.5 oz a head |
| Salsa | 11 lb | 176 oz | 11 × 16 oz jar | 2 oz a head, tacos and chips |
| Sour cream | 4 lb | 64 oz | 4 × 16 oz tub | 0.75 oz a head |
| Guacamole | 6 lb | 96 oz | 6 × 16 oz tub | 1 oz a head |
| Sliced jalapeños | 1.5 lb | 24 oz | 2 × 12 oz jar | 0.25 oz a head |
| Sliced black olives | 1.5 lb | 24 oz | 4 × 6 oz can | 0.25 oz a head |
| Tortilla chips | 5.5 lb | 88 oz | 8 × 11 oz bag | 1 oz a head |
| Plates | 83 | — | 2 × 44 pack | 10% over the headcount |
| Napkins | 248 | — | 3 × 100 pack | 3 a head, tacos drip |
Package sizes for beef, cheese, lettuce, salsa, sour cream, guacamole, jalapeños, olives, chips, plates and napkins are ones actually stocked in American supermarkets: ground beef in 1 lb packs, shredded cheese in 8 oz, 6 oz and 32 oz, salsa in 16 oz, 15.5 oz and 24 oz. Taco shells and tortillas vary by brand; 12 hard shells or 10 flour tortillas to a pack is typical.
Why three tacos a head
Most adults eat two or three tacos when there are chips and toppings alongside. Teenagers and a sports team eat four. Young kids eat one and a handful of chips. Three is the number that comes out about right for a mixed school or church crowd.
Each taco holds about 1.5 oz of cooked meat once the toppings go on. Across three tacos that is 4.5 oz of cooked beef a person, close to a standard serving of meat. If your crowd skews older or younger, move the taco count and the beef moves with it: every extra taco a head for 75 people adds about 10 lb of raw beef.
What actually goes wrong
- Buying cooked weight as raw weight. If you buy 23 lb because the math said 372 oz of meat, you run short by a quarter. Buy for the raw number.
- Hard shells break. A few in every box arrive cracked, and more crack on the line. Having some soft tortillas as a backup covers it.
- The line stalls at the meat. Put the shells and meat first and the toppings after, and set up both sides of the table if you can. One serving spoon for 75 people is a long wait.
- Nothing for the people who skip beef. A pan of seasoned black or pinto beans costs little and gives vegetarians a real taco instead of a plate of lettuce.
- Keeping the meat hot. Cooked beef in an open pan goes cold fast. Move it to a slow cooker or a chafing dish once it is done.
If you are organizing this with other people
The arithmetic above is the easy half. The hard half is turning it into asks that one person can carry, keeping track of who said they would bring what, and reminding them before the day. That is what Event Wranglr does. You describe the event in a sentence, it works out the quantities and the package counts, and it produces a sign-up sheet your volunteers claim from a link with no account and no advertising.
Describe your taco night and see what comes back.
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