I don't need to go into a heart-wrenching speech of all the hungry children in the world, it's just insane and repugnant to see all this food go to waste. Furthermore, year after year, think of all the money that could be saved by the government subsidies invested in paying for all this inexpensive food (for students). And lastly, and most importantly, I don't think it would be that hard to get a nice educational campaign going to change the current apathetic waste-food behavior. I think teaching students to ask for a hold on servings wouldn't be that hard. There is something quite appealing about it; I would think a good deal of students would adopt the change because they would consider it represents doing "the right thing, the responsible thing," doing "a good thing", like they might think about recycling or helping some other blind student cross the road.
So, if you are a bright student looking for a wonderful project to develop and make your contribution to the world, here's a nice idea! Go for it!
Nothing has changed in my life with hundreds of ever-present chaotic deadlines to allow me to take this on right now... but perhaps you could!