Hey, Paige!
Welcome to the Disney Parks Moms Panel! I love dining in the Beast's Castle, especially in the West Wing. Dining experiences and additional specials event held at Magic Kingdom Park during
Mickey's Very Merry Christmas Party require a party ticket.
You have two possible options. First, you can purchase a ticket to Mickey's Very Merry Christmas Party and enjoy all the yuletide cheer including Mickey's Once Upon a Christmastime Parade, delicious complimentary holiday treats and Holiday Wishes - Celebrate the Spirit of the Season Fireworks. This is a great party and a ticket will allow you to keep your dining reservation. Second, you can cancel and try rescheduling to a different day or time. I would suggest option two.
Disney Dad Tip: Typically, if another Guest is going to cancel a dining reservation they will do so 24 hours in advance. I would call 404-WDW-DINE or check
online 24 hours in advance of your desired dining time at
Be Our Guest Restaurant to see if they have availability due to cancellations. Another option is to walk up to the check-in booth just before the castle bridge to see if there were any no-shows. It does happen and you could be there to take advantage.