I think TG's point was that the $457 listed COULDN'T have been their get-together, because it would have to have been a much higher amount. So, he concludes it was probably something for employees. I imagine a series of small amounts of meal expense for employees, spread out over 13 weeks. It comes to less than $40 per week, so a weekly office pizza could very well be all it is. All just hypotheticals, of course.
My boss used to buy our lunch at times and donuts in the morning. I am sure he wrote this off on his taxes. I do not have a problem as that brings a good feeling to the employees. Maybe he took a possible model out to lunch. This amount is such a mute point IMO. DA could spend another $1000 and I would be fine with that as well.