At QS restaurants you can share without any problem. Some of the meals are large and easily shareable.
At most TS restaurants where you order from a menu you can share. Some restaurants will divide the meal in the kitchen while others will bring an extra plate to the table.
If any of your children are 2 years or under they can eat off your plate (or get their own plate at buffets) and there is no additional charge unless you order something specifically for them.
You cannot share and everyone 3 years and older will be charged at buffets (e.g. Chef Mickey's, Hollywood & Vine), all you care to eat family style meals (e.g. 'Ohana, Garden Grill), set price meals (e.g. CRT, Akershus), dinner shows (e.g. Hoop De Doo), special events (e.g. Fantasmic Dinner Package, fireworks dessert parties) and the family platter at Whispering Canyon Cafe.