I can't speak for the childrens meals, but both times I had lunch there, the veggie sandwich was also an option. And you got the sandwich, a drink (which could be a bottle of water) something from the dessert case and either a bag of chips or a piece of fruit. It was a great value. However my last trip was last year so I don't know if what's included has changed.
And as already mentioned, no indoor seating and limited outdoor seating.