This place is unique. They keep their OpEx (business speak for operating expense) low by having you get your own water and bus your own table.
Here is how it goes. Line up to place your order. The menus are to the left of the register. Get your number and grab a table. They will bring the food out to you as soon as it is done. It may mean that food is staggered as it comes out when done.
What did I learn today? This place has a cafeteria like feel to it.