We like places where we can get food more similar to what we eat at home, due to food sensitivities and because we're vegetarian, so we often pick and choose a lot. We may grab one item from 3 different places and have a kind of walking, grazing meal, so to speak. It's just what works for us right now because our one son is not a fan of long sit down meals, and 8-12 days of them would be unfair to him and unpleasant for everyone else. So with the exception of one character meal and one meal where we'll be meeting up with local friends, we're planning only room meals and park/resort QS meals.
Some of the places that we tend to go back to are:
MK: Columbia Harbor House. It has more than one standard vegetarian offering, which is pretty great, so we stick with it.
Pecos Bill. We can get all sorts of options here....tacos, fajitas, rice bowls, even veggie nachos.
AK: We tend to check out Harambe market & Yak & Yeti for whatever veggie options they currently have. We like the Harambe fruit market for snacks. And this is where we will likely try for a character meal, because Tusker House's buffet works really well for us.
HS: HS has previously been the toughest place for us. We've gone to Backlot Express for salads and the Anaheim Produce stand for snacks. Although we've also gone to the Sci-Fi Dine-in since the themeing makes up for it being a sit-down place for our son. But things are changing in HS (under-statement, huh?), and we see new plant-based options slated for SWGE.
EPCOT: EPCOT's a pretty big win for us just because there is just so much variety and so many individual places to go to. If you can find even one item that works per place, at 50% of the places, you've got waaaay more food than you'll ever need. That being said, we definitely like Sunshine Seasons & Tangierine Cafe as a rule for having slightly more plant-based options for us to choose from.
We love the Veggie Platter at Tangierine and we like that they have plenty of different sides as well.