In AK, Flame Tree BBQ is good, so is Pizzafari. I had a chicken parmesan sandwich there that was quite good.
At DHS, you can try Toy Story Pizza Planet. The food at DHS is more "miss" than "hit," though.
At Epcot, you have some great choices! Sunshine Seasons at the Land has some very good food. In World Showcase, you can try the Cantina de San Angel (Mexico), Tangierine Cafe in Morocco, Yorkshire Fish Shop (UK).
At Magic Kingdom, we like Cosmic Ray's, where you can get chicken and ribs and bbq pork, or Pecos Bill's -- I love their chicken wrap.
Check out the menus at allearsnet.com to see what catches your eye!