I probably wouldn't plan on eating DURING MVMCP. You will miss so much of the party. And since you paid extra for those tickets, it seems like a waste of money. Especially since your little one is so young and will probably be asleep early.
I would plan on celebrating at lunch time somewhere and then just grabbing a quick counter service or snack during the party. If you weren't planning on going to a park during the day, pick a restaurant at one of the resorts or offsite. Like maybe Chef Mickeys??
Maggie