My DH is the world's most boring eater, so take that into account when you look at my suggestions
AK - Restaurantasaurus - we like it especially because they have free drink refills
EP - La Cantina de San Angel or Liberty Inn (crazy at it sounds, Liberty Inn had the best burgers of the entire trip because they are served on a brioche bun instead of the gross "Disney" buns)
MK - Columbia Harbor House
HS - Backlot Express - decent food, and free drink refills.