We make our food fresh every morning. You absolutely can come in and grab as much or as little as you want. Everything is prepacked after we cook it and then put into our fridges for you to grab from much like a grocery store or quick serve store.  
No need to order ahead of time, although we do offer pre-ordering for customers to order exactly what they want from our menu and then available to pick up the next day afternoon. This allows you to have exactly what you want and not worry about something being sold out.