There is a snack shop called Captain Cook's which is open 24 hours. It does have donuts, pastries, bagels, cereal, fresh fruit. They offer a few hot items but I don't remember pancakes. Be sure to try Kona one day. It's great.
There is also a coffee bar on the second floor between Kona and the doors to the monorail. They have bagels, muffins, fresh fruit, etc..