The pool area serves food. I think they have "grub"

I didn't get anything from there, but I think they have burgers n stuff. I would see if it's listed on the menus websites.
There are groceries you can buy in the store in the lobby.
And, there is a food court at Mara. You can walk there in about 5-10 minutes, or take any park bus. They also run a shuttle van between resorts in the morning. We used that when we went for early lunch about 11-11:30 or so one morning, it was nice!
We had groceries delivered from garden grocer.
Hope that helps!
-mary