Same cafeteria workers as always, same types of menus.
The biggest change in logistics seems to be that all the meals are now to-go, so goodbye trays, hello bags.
In theory everyone's supposed to be lining up 6 feet apart.
In practice... well, NYC grocery store aisles are some of the narrowest corridors you'll ever encounter in your life, and there often isn't even space to line up for a cashier.
So social distancing in supermarkets is a total joke. But the alternative is starving to death, since the grocery delivery services are all sold-out. So people line up for food wherever they go.
Of course you also need money to buy food for weeks, easy to say to others buy this and that)