Could this work for portion control?

At Manchester College, North Manchester, IN, meal plans now include going trayless. From the "Green Campus Initiative."

"For those returning students, you may have noticed that starting this fall semester, we have started implementing the trayless option as part of the Green Initiative on campus. This was decided upon to attempt to cut down on the amount of waste produced by students on the meal plan over-stocking on food because of the freedom of space on the trays, then discarding the uneaten food. All excess food products are collected in two bins on either side of the dish conveyor, serving as a gauge for the amount of waste saved and produced. In the two months the program has been in place, Chartwells reports a significant decrease in the amount of waste produced by students. Within the student body, a reported 75% or 1 in 4, are choosing to eat their food without a tray, according to Chartwells statistics.

Although trays are still available for those who wish to use them, Director of Food Services, Chris Yeadon, says that the amount of food being taken is still decreasing. "You can see it. Even the people that grab trays when they walk in clearly have less on them." The program benefits the community, since we, the Office of volunteer Services, take the difference in funding for waste."