A system for assembling a pizza includes: a computer configured for receiving an order for the pizza a database accessible by the computer for providing a list of ingredients for the pizza based on the order a monitor operably connected to the computer and positioned in an order preparation area for displaying instructions for assembling the pizza and a scale operably connected to the computer for continuously weighing the pizza during assembly of the pizza. The monitor then displays instructions to apply the ingredients. As the ingredients are applied to the pizza, the scale is continuously weighing the pizza and outputting a signal representative of the weight to the computer, which then displays an indication that the appropriate amount of a selected ingredient has been applied to the pizza.