Arrive early (8:00, or so) to DHS and see if they will allow you to enter at that time.
Once inside, you and any kids signing up head to sign up for Jedi Training Academy.
(There MIGHT be sign-ups doing on right outside the restaurant.)
Sign up for JTA, then head to your PPO breakfast.
Now, for my unsolicited opinion:
I consider 8:40AM to be a very poor time to be eating an expensive breakfast when the park will likely be full of guests about 5-10 minutes later, and the lines for the popular attractions
will be getting longer by the second.