That is something this park DEFINATELY lacks, really good counter service locations. Although, we really prefer the "ABC Commissary." They have a different variety of food for adults while still all the "standards" kids like.
This is the counter service menu there: (The cuban sandwich is my favorite)
ABC Commissary - Counter Service - Disney-MGM Studios
I should also say that the hot dogs & grilled turkey sandwiches at the Backlot Express are good:
Back Lot Express - Counter Service - Disney-MGM Studios