My son went last year at age 9 and this year at age 10. Granted, we didn't make him always order from the kid menu, so he may have a different perspective if we did
He enjoyed:
Sci Fi
Raglan Road (he's a bit of a foodie, and just loved this place)
Cape May breakfast (crepe station)
1900 PF breakfast (he likes buffets, getting whatever he wants is a big deal)
Yachtsman (loved Mickey puzzle dessert)
Mama Melrose (we had fantasmic package since he is 10, he ordered adult stuff)
Via Napoli
Ohana dinner
Yak n Yeti
San Angel Inn
If you are on the dining plan and he is on the kid plan, but he has more an adult appetite or tastes...you can either upgrade him to adult on the dining plan and tickets (expensive) or choose a lot of buffets and AYCTE places