Hi Denise:
Every vacation, my boys insist on eating at
Chef Mickey's - for breakfast, dinner, or both. The energy at Chef Mickey's is incredible. My boys not only enjoy the huge buffet, but their smiles shine when Mickey, Donald, Goofy, Pluto, and Minnie stop by the table to pose for pictures and sign autographs.
You have a couple of options other than canceling the reservation. You can take a taxi or a Disney Bus. If you are worried about timing and want to take a taxi, simply call the front desk to help arrange a cab. Alternatively, you can take complimentary Disney Resort bus. Buses start running early to the Magic Kingdom for guests who have early morning reservations at Chef Mickey's at the Contemporary Resort, as well as at restaurants inside the Magic Kingdom.
I would plan on waiting for your bus by 6:30 a.m. The bus will take you to the Magic Kingdom, and you can take the walkway (about 10 minutes) over to the Contemporary. Inform the bus driver that you have reservations at Chef Mickey's. During early morning bus routes, it's possible the bus driver may be able to drop you directly at the Contemporary Resort for your reservation.
Happy eating and enjoy your vacation.