We *usually* skip TS at Epcot unless we want to go to Le Cellier, Teppan Edo, or Chefs de France but that is a rarity. We keep our snacking costs down by sharing things, and by skipping anything where there's nothing uniqe or that we're in the mood for. Also some of the shops have really need candies or snacks that are imported.
Our favorite QS or snacks are:
Mexico- La Cantina de San Angel (QS), split a kid's order of empanadas, or get some churros (or both if we're making a meal in which case we add a side of beans or rice). Splitting an order of tacos is also plenty of food for a snack.
Norway- Kringla Bakery- I know the school bread is the fan favorite (and it's good), but we love the berry cream puff and the rice cream.
China- Joy of Tea snack stand- curry chicken pockets, red bean or ginger caramel ice cream. The potstickers at the QS are also decent.
Refreshement Outpost- I skip this, nothing really special here
Germany- pretty much anything at the Karamell-Kuche shop (especially the caramel popcorn), or a pretzel at Sommerfest if I'm enjoying a beer
Italy- Gelato (but this is usually another one I skip unless I really want ice cream/ sweets). The Tutto Gusto Wine Cellar has small plates, but I haven't made it in there yet.
America- I usually skip this, not really much special here unless DH wants a turkey leg.
Japan- we usually skip unless we're eating at Teppan Edo. My kiddos really like the Teriyaki kids meals at the QS Katsura Grill (beef/ chicken/ beef and shrimp). There are all kinds of Japanese snacks in the shop, which makes for an inexpensive snack you don't have to stop to enjoy. The shaved ice stand is also good.
Morocco- there's not much grab and go here. I really like the shawarma, or the kefta if I'm craving that but otherwise, nothing here that's a must-do for me.
France- I will eat just about anything anyone hands me from Les Halles Boulangerie-Patisserie. If you don't want a pastry, the ham and cheese on a croissant is my favorite savory thing there. It's grilled cheese and ham with bechemel on a croissant. For sweets, it's all good but my favorites are the chocolate croissant, and the frangipane.
UK- I like to duck into the store and get some British candies to enjoy another time. I don't love the fish & chips. I know they're a crowd favorite but they're not as good (to me) as they used to be.
Canada- there is not much here unless you're going to Le Cellier or want maple popcorn. Just past Canada is Refreshment Port, and they have poutine.