Some of my favs:
Disneyland:
Sweetheart Cafe - For pastries, I haven't tried their sandwiches here but I ALWAYS stop and get some Mike Wazowski bread. Its 'melon-pan' in the shape of his head and soooo good. Groups of girls will fill their trays with several (maybe as gifts?). I also enjoy the anpan buns in the shape of a dog bone.
Camp Woodchuck Kitchen: Waffle sandwiches. Need I say more?
Grandma Sarah's and Queen of Hearts Banquet Hall: These are both in really neat settings and worth a stop. The food isn't anything special but the portions at Sarah's are large, and the food at the QoH is cute.
Rackety's Raccoon Saloon: ok, so this is just a snack place really but I love their sundae! They have corn flakes in the bottom for a nice crunch, good soft serve with fruit topping and an ADORABLE mickey churro stuck in there too. I love it.
Huey, Dewey and Louie's Good Time Cafe: I had a sandwich here this last trip and it was REALLY good too... it was a special Easter offering but I imagine their normal sandwich was good too. It was in the shape of an egg on soft steamed bread but the normal one is a Mickey hand I think?
Disney Sea:
Teddy Roosevelt Lounge - there may be a wait but we've enjoyed everything we've had here so far. Their Caesar Salad is a little strange, but still yummy and they have a large pastrami sandwich too that most people seemed to be ordering. Their seasonal parfait was SO GOOD I went back the next day and got another. I always make sure to go here every trip - its relaxing, kind of funny with all the bears around, and they have a large drink menu if you are inclined (I rarely drink and didn't have anything this trip but still enjoyed it for the ambiance.)
Casbah Good Court: A previous poster mentioned the curry is spicy but mine wasn't at all... I had the Easter special set and it was normal. Not bland, but not hot spicy just lots of curry flavor if that makes sense?
Cafe Portofino - buffetteria with pastas, I enjoyed the set meal but it was too large to finish.
Disneyland Hotel:
Dreamer's Lounge: They serve afternoon tea here! Its quiet and lovely, the tea is delicious and the treats are adorable! Its great for a break from the park if you change your mind and need a break. And/or for anyone else reading!