I'm not talking extra helpings, I'm talking about the food served while working as an "Extra" last week, for an ABC family movie titled "The Mistle-Tones." (With Tia Mowry, and Tori Spelling.)
Our meals were catered and we were given large portions of cooked vegetables, as well as salad. We also had some pasta one day, and rice another day, with a small amount of meat each time.
As I reflected on this, I realized it's an economical way to feed a crowd: lots of veggies to fill up on, a portion of grain/starch, and a small amount of meat. (Basically the way I eat at home!) They didn't serve us "cheap" burgers from a fast food dollar menu. Seems to debunk the theory of those who claim it's cheaper to feed their family junk.