Hi Diane!
Thank you for visiting the Moms Panel!
For the most popular restaurants at Walt Disney World Resort, Chef Mickey's included, it is always recommended that you make an advance dining reservation. Every time I have dined at Chef Mickey's it has always been busy and even with a reservation it is usual to have a short wait before you are seated. I would not rely on securing a table by trying a walk-in., but it may be
possible you could be successfully seated - in which case I would advise you are prepared for a long wait.
Advance dining reservations can be made
online, or by calling 407 939 3463, up to 180 days ahead of time.
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!