Your restaurant guests can be very demanding so you will need to keep adding Chefs to your expanding restaurant to satisfy their requests.
There are a number of ways to see what your restaurant guests want to order:

Tapping on any of the tables will open the tool tip that will display the dishes the table requires.
Place your finger in the tool tip and drag the dishes to the table to serve your guests.
You can also see the reward, Gold and XP, you will receive for serving the table.
There is also an exit sign that you can use if you don’t want to serve the table and you want the guests to leave. If you ask a table to leave you will need to wait a little time before the next guests arrive.

Tapping on the Order Board icon on your screen will open the Order Board pop-up screen.
Tapping on each ‘order check’ will display the required dishes.
Tap ‘Serve’ to serve your guests. You can also ask the guests to leave tapping on the red exit button.
Tap on the Order Board within your restaurant to open the Order Board.
A green tick will appear above the table, order board, and on the order board icon when you have all the dishes prepared to serve a table of guests. Tap on the table then drag all the dishes to the table to serve or tap Serve when you have the Order Board open.