They have a deli that does sandwiches and they also have hot items wrapped up and in a hot item area (similar to what they do at grocery stores for the cooked chickens and such). We did not buy any of the deli items but have read good reviews from folks who did.
I know I have seen some pictures on this site somewhere in the DVC section but I can remember if it was from a trip report I was reading or somewhere else. You might want to check out the "Going to Aulani Lets List Places to Eat" thread over on the DVC Resorts section.