Are you referring to lunch or dinner? I don't have experience with ordering a kids' meal on the
DDP but I'll see what I can find.
ETA: Here is what I can gather with my limited knowledge. From looking at the menus, it seems like at both lunch and dinner your child would have the choice of drink, entree, and desserts on the menu. It does not seem to be a situation where you can substitute a dessert for one of the sides; it's included as a separate item. Whatever sides are listed are counted as part of the entree. So for instance, at lunch he or she could get:
-Carved turkey sandwich with sweet potato wedges and peach applesauce
-Chocolate milk
-Strawberry cream cheese cupcake
Or at dinner:
-Grilled steak served with seasonal vegetables
-Apple juice
-Chocolate cream puff
Does that make sense?