At most every restaurant (sit down) they were given either the same choice of my other children, or given a special 'kids' meal. At the buffet's, he ate off my plate (really he had his own plate LOL).
Garden Grill, gave him his own plate and own dessert like my other children, CRT he had his own childs plate, Chef Mickey's he ate off the buffet and was given a glass for orange juice, Sci Fi he was given a special kids choice, I don't think it was on the same menu that my other kids used though.
At the Counter Service, you either pay OOP or you let them eat off your plate.
HTH