In University I tend to sit close to the band conveyor that transported the leftovers into the kitchen to be cleaned. But when something good was there - I was fast. And it was to be thrown away, anyway, so I didn't restrict myself to vegan goodies (though the fries always were a favorite). I was always surprise by how much people left on their plates.
But that was an ethical thing. I didn't need to do it (yes, it saved me quite few bucks), I just didn't like things going to waste. Still don't.
Glad that Smallsteps first day went good! And that she was able to bond by sharing her meal, even though it was over an allergy. First impressions are important.