Yes, I agree with the others. The kids' meals we got when we fly are usually chicken nuggets, a slice of pizza, or a little pasta with red sauce.

if I were you and your child (as it sounds) is in that in-between stage where he will eat baby purees and also some table food, I'd go ahead and order the kids' meal but bring a couple jars of puree in your bag. That way your child can have the crackers and cookie and yogurt from the kids' meal (at least) but also be sure to have something on hand in case the main entree is inappropriate for your child or just plain not tasty.