not sure but Disney should create a section on their website dining area where you can ask this question and a search will show up everything that pickles in it and which place you can buy them. All menus in a database that is searchable for people who are looking for specific dishes or desserts and/or drinks.
I suppose you could go to Pecos Bill and take some pickles from the toppings bar, find some bread crumbs to coat them, ask for a side of butter, then throw it all into one of the pans that sautee mushrooms. Yet another way the the bar goes above and beyond "toppings." I'm waiting for the day someone brings in a few essentials and cooks a mini gourmet feast over at the Pecos Bill toppings bar.
The pickles thing is good to know since there are a few places locally we can get them and was wondering if the mouse had anything to compete, however the big question still is what is Jazzy Land Jazzerias, it might be just something somene put on the Magic Kingdom wikipedia page but I've had people ask me about it since I am somewhat the mental sponge regarding Disney and the parks in my family and I have never heard of it.
The fountain of youth really is in Florida... thats why they built Walt Disney World where they did.