Hi, Tracy, and thank you for your question!
My family loves
Disney's Art of Animation Resort so much, that we try to make time when we are staying at other resorts to go over and soak up the atmosphere. I hope you enjoy your visit as much as we do.
There is a gift shop that will have some items that you want, and the grab and go section of
Landscape of Flavors usually has things like 1/2 gallons of milk, individual cereal boxes, and stuff like that. You won't be able to do a full-on grocery shopping, but you can get a few things to hold you over.
If you think you'll need more than the things you might be able to get at the resort, you can Uber to one of the area grocery stores. There is a Publix a few miles away that we go to when we visit, and you can also use one of the area grocery delivery services. Another option is to order through Amazon Prime and have your items delivered to your resort.
Wishing you the most magical vacation and the happiest time planning!