Sunshine Seasons Food Court (in The Land Pavilion) has a lot of great choices for a counter-service meal, lots of good healthy options as well. We love to eat in here. My kids also like the Coral Reef, Teppan Edo and the Biergarten.
If you're a little adventurous but not sure you want to commit to a whole sit-down meal, I HIGHLY recommend the Tangeriene Cafe in Morrocco for a counter service meal. My daughter LOVED the shwarma sandwich (like a Greek gyro). We are going to try the sit-down here on our next trip.