In case it helps, there were a couple things that seem like they could be improved to hint to the player how they can interact:

1. It took me a really long time to see the button in the upper left that turns around to view the kitchen. Something that stands out more from the background, and maybe even has text, would help.
2. While you can figure out pretty quickly by clicking around that clicking on the wizards shows their orders, a hint that you're supposed to do something with them would be nice.