Since Main Street seems to be accessible before rope drop to those who get there early, is anything there actually open to grab any snacks/quick food beforehand? Stores, kiosks, ect?
Starbucks/Main St Bakery would be the main place for food. I think the Emporium is open as well. Casey's and the Plaza Ice Cream parlour used to be, but they open later now.
Yes, Starbucks has food...pastries and their regular breakfast sandwiches. There should also be a kiosk or two around the hub with coffee and pastries.
Just a heads up: If MK opens at 8:00, there isn't much of an early entry. They start letting people in around 7:45.