My DisneyAdult DS has also ordered off the child's menu at several TS restaurants. He is a big eater (despite being a beanpole), but picky. When our server came, I explained that while DS was hungry there wasn't anything on the adult menu that appealed to him. Then I would ask if it was possible to for him to order from the children's menu but get larger portions. In thirteen out of sixteen cases, that's exactly what he got. When it didn't happen, I didn't get upset or complain - it was the children's menu, but it usually worked for us.