I'm throwing a surprise 60th birthday party for my mother-in-law and we decided to do a big taco bar since its right around Cinco de Mayo, we have lovely weather, a big backyard and a grill to work with.
We are planning to do both marinated chicken and carne asada on the grill for the tacos, but I'm not sure how much we'll need for around 20 people. I always like to have plenty, rather than the fear of running out, plus the guys in my family will be perfectly willing to take home leftovers... I just need a suggestion of how much meat to purchase. Any thoughts?