What a boxed office meal actually is: an order counted in people, not trays
A boxed office meal is one person’s whole lunch inside one sealed container: a main, a side or two, something sweet, a drink, and the cutlery beside it. The portioning happened in the kitchen, so nothing gets divided once the food reaches your floor.
The packaging is the visible part. The counting is the part that does the work. A tray order is bought in pans and pounds, then split across however many people turn up. A boxed order is bought by the person, so 43 people means 43 meals, and the marker on each lid decides who takes which one.


