As of Saturday 7/31, the MCO food court had Nathan's/Carvel, McDonald's, a noodle stand whose name escapes me at the moment, Sbarro, Chick-Fil-A, Fresh Attractions Deli, and a Krispy Kreme.
There was major construction going on just past the food court on the side closest to the A gates. Macaroni Grill will probably be in that area as they are usually full service restaurants rather than food court eateries. From what I saw, the completion of that area is still a long way off.