As a specific example: at a place which only does burritos, they batch up a big pot of rice, a big pot of beans, lots of lettuce, big pots of various different

As a specific example: at a place which only does burritos, they batch up a big pot of rice, a big pot of beans, lots of lettuce, big pots of various different meats, and so on. Then it takes you about a minute from walking in to paying, as they just semi-toast a wrap and then fill it with all the pre-made ingredients. The ingredient preparation can be done in parallel with service, too.