Your trip sounds like a quick weekend trip... since you don’t have plans for Disney Springs or theme parks.
I recommend studying the online menus for Big RiverGrille , BW Bakery Beaches & Cream and Trattoria. Also recommend noting their open/ close and what is considered breakfast,lunch,dinner serving hours.
If this is a short visit w/ grandchild you will probably be able to make plans. And a quick walk to the Epcot SkyLiner loading station or jump on the boat transportation do not require payment to enjoy.
P.s. I have heard great things about the breakfast at Trattoria.