Hi Amy!
Thank you for visiting the Moms Panel!
Chef Mickey's is one of the most popular character dining experiences at Walt Disney World Resort. With reservations being made up to 180 days in advance, the popular restaurants become fully booked very early. Chef Mickey's is open, it is just very popular.
All I can recommend is that you continue to check availability as cancellations do occur. Continue to check availability once you have arrived on vacation too, as you may even be able to secure a same-day, or next-day reservation.
Reservations can be made
online or by calling (407) 939 3463.
I hope you have success - there may be more openings for a dinner reservation (5.00pm - 9.30pm), if breakfast remains fully booked.
If you have any more questions, please come back and ask me - I would be happy to help you plan your magical vacation!