Visiting Portland with children

We'll be visiting Portland with two 5 year olds, and we are looking for places with great food where we can take them. We have a sitter so we can go to Le Pigeon and Ned Ludd, but would love suggestions particularly for lunch and trucks. Keen on finding places that have interesting food but also something that kids will eat- these are pretty ok eaters, will have veggies, new stuff etc but we need places where, for example, not EVERYTHING is spicy. Does that eliminate Pok Pok? What truck / pod would you recommend? And what about donuts?
Thanks!