If you aren't doing the dining plan you can order him anything off the QS menu. There are some things like soups, salads, yogurt, side items that you could order for him plus share some of your food too. Resort quick service places have many more options for the kids menu and frequently are willing to serve kid sized portions of adult food if you explain and ask nicely. My kids were vegetarians until they were about 8 and with a big QS breakfast, treat, and buffet dinner they tended to not eat much midday. If you are on the
DDP you may find it easier to get a kids breakfast (they will sub for the meat) with the credit and buy something for QS lunch to have more flexibility. My kids did get very tired of the sides from kids meals quickly too--carrots, grapes, and applesauce. But they love the big packs of fresh cut fruit you can buy at the fruit stands.