Crystal Palace dinner is excellent!!! Food is delicious, and entertainment from the characters is so cute and the kids have lots of fun there.
Chef Mickey's breakfast is wonderful! We loved the food there, and the character interaction was also terrific. There was a HUGE tour group there at the same time as us but somehow it still did not seem too crowded in the restaurant, even though it was a buffet! They took our picture when we first entered, and we bought the photo package (totally worth it!!!). Highly recommended!!
We also enjoyed the breakfast at Hollywood & Vine at DHS. Our kids are into Playhouse Disney so they loved those characters, the food was great also.
Another nice one was 1900 Park Fare at the Grand Floridian. We went there for dinner. Cinderella, Prince Charming, the stepmother and stepsisters are there and it is so much fun. I have 2 boys but it was still very nice even though it was princess-themed. Food was great, although DH was not crazy about it. But I loved it. We will try this next time for the breakfast with Mary Poppins, Alice and the Mad Hatter and Tigger & Pooh.
I have also heard great things about the character breakfast at Cape May Cafe. Since we are now DVC members at Boardwalk Villas, we will be going there for our last morning each trip for a character breakfast (as long as they have it of course!). I hear the dinner there is good too, the clambake all-you-can-eat!
We also enjoyed the Biergarten at Epcot in Germany. It is a German buffet with delicious food (and really has something for everyone, including a children's section). They have Oktoberfest shows each evening during dinner and it is wonderful and the kids all seem to really enjoy it too!