If you urgently need to pick up another dish, but both of your hands are full, you can put a dish down on a tray. Once you have placed a cooked dish on the tray you can start cooking the next one.
Depending on your upgrades, there can be one or two slots where you can put dishes in order to free up a hand.
Depending on your upgrades, there can be one or two slots where you can put dishes in order to free up a hand.