Here's a list I made for my group.
Whack's Guide to Counter Service Food
Or
Im Hungry NOW! Where do We Eat!
Magic Kingdom
Cosmic Rays Starlight Café in Tomorrowland: Serves chicken, pork ribs, grilled chicken sandwiches, and the usual fried fair. Among the best in the Magic Kingdom.
Pecos Bills Tall Tale Inn and Café in Frontierland: Burgers and chili, as well as the usual fried fare. It has a great fixins station to load up your burger or dog.
Tomorrowland Terrace Noodle Station in Tomorrowland: Asian inspired noodle dishes and salads. A nice change from the fried stuff and meat heavy entrées.
Pinocchio Village Haus in Fantasyland: Likely to be crowded, this used to be a poor choice. Now with a revised menu including antipasto salads and Italian themed sandwiches, it may be worth a try.
Epcot (tons of good choices here)
Kringla Bakeri og Kafe in Norway: Open faced sandwiches with good meats and cheeses. Salads, interesting dessert choices.
Sommerfest in Germany: Great place for a bloatwurst
with Kraut. The apple strudel isnt bad either.
Sunshine Season Food Fair in The Land Pavillion: This is one of the best in Epcot for counter service. There is a wood fired grill station, a sandwich shop, and an Asian cooking station. Highly recommended!
Tangerine Café in Morocco: Chicken and lamb shawarma, hummus, tabouleh, chicken with couscous, tabouleh wraps.
Yakatori House in Japan: descent quality rice bowls with chicken, beef, tempura shrimp, etc. chestnut cake.
Yorkshire County Fish Shop in the United Kingdom: UK inspired fish and chips.
MGM Studios
Not much good to eat here. Catch as catch can, or back to the resort to eat.
Animal Kingdom
Flame Tree Barbecue: St. Louis ribs, smoked chicken halves, smoked beef, pork, or chicken sandwiches, BBQ chicken salad.
Tusker House Restaurant: Rotisserie chicken, grilled salmon, turkey wraps, chicken salad, mac and cheese for the kids, and bakery items.