Here is a price list of some of the more popular character buffets. You may find that it's not a big deal to pay the extra few dollars due to the fact that the adult meals are not much more than the kids meals.
Crystal Palace: Breakfast, Adult $16.99 Child $8.99
O'hana @ Polynesian:Breakfast, Adult $16.99 Child $8.99
Biergarten @ Epcot: lunch, $15.00 across the board (non character but entertainment)
Akershus @ Epcot: Lunch, $14.00 across the board
Cape may Cafe @ Beach Club: Breakfast, Adult $16.99 Child $8.99
Chef Mickey's @ Contemporary: breakfast, Adult $16.99 Child $8.99
garden Grill @ Epcot: lunch, Adult $19.99 Child $9.99
Liberty Tree Tavern @ MK: lunch & Dinner, adult $21.99 child $9.99
Good luck with whatever course you guys take
