I have a cookbook that I looked this up in, it's not for tacos, but for hamburgers for 100 people, will take 35 lbs. of ground beef. I hope this helps you out.
By Trix (Guest Post)
08/29/2006
At home I cook up 1lb of meat and it feeds three people, so I would guess somewhere between 30 and 35lbs for 100 people. It would depend on what you were serving with the tacos - if you have a lot of other dishes as well then you probably wouldn't need quite so much taco filling.
By
08/29/2006
I think 20lbs of ground beef would feed 100 people but that would only give 1 taco per person.
By raenna@charter.net (Guest Post)
08/29/2006
thirty pounnds of beef shound do it
By
08/29/2006
about 14 lb 8 oz (filing) about 31 lb 4 oz (beef or pork)
The normal serving of meat is 4 ounces per person. You could reduce it somewhat because there are beans and cheese in tacos which add more protein. 4 ounces per person is 25 pounds of ground beef. Three ounces means you need less than 19 pounds.
By (Guest Post)
08/28/2006
I was thinking a couple of ounces of meat per taco, 3 tacos a person, puts you at about 40 lbs.