Just wondering if there is a little symbol next to the items that are vegan on the menus. What about at Food booths at Epcot? Is there a way to search ahead of time (before at the restaurant) to see what vegan options are offered?
Generally if there is an option it will be indicated under the "plant based" section of the menu.
Be aware that while Disney has been adding much more there's not gonna be an option on every menu.
Although most places will at least have a vegetarian option which may or may not be vegan as well.
Definitely seems like there are vegan options more at Quick Service locations than Table Service locations.
You can look at menus on the Disney World website.