It's mostly prepackaged things like bags of chips, popsicles, enjoy life cookies, surf sweets gummies, cotton candy, fruit at the fruit stands, yogurt cups, grapes and apple slices as kids sides, and popcorn. All of the prepackaged goofys candy co stuff that is in all the shops all have nut warnings as do all the Minnie's Bake Shop prepackaged items. The resort locations also have a few things like oreos, rice krispy treats (regular brand name ones not the mickey shaped ones), and cheezits that are nut safe but I haven't seen them in the parks.