you can see many of the menus on line for universal parks and for city walk.
what type of food are you interested in?
counter service, sit downs, ???
are you looking for places based on the costs, type of food or ambiance?
there are counter service food places that have seating indoors. one i really like is enchanted oak in ioa. food is fresh, tables and booths available and price reasonable.
international film festival has counter service and you are served by workers behind the food area. you can choose from chicken dinners, italian, chinese, american foods.....and has indoor setting. good choice for families. a little of something for everyone.
if you like fixing bars for burgers and chicken sandwiches, richters is good.
give us some ideas of the type of foods you are thinking of and many here could help you out better.
mythos is a sit down resturant that is quite known and highly acclaimed at ioa. it does close around 3 in the daytime in low season though. good choice to choose from here.