We've done lots of Disney birthdays! Most of the restaurants will sing for you and bring some kind of one-person cake for free. I remember Chef Mickeys and Crystal Palace doing that for sure. Maybe also 1900 Park Fare. CM and 1900 gave us laminated placemats with character signatures. CP gave us a birthday card signed by all of the Pooh characters.
We also told Wilderness Lodge about the birthday one time. When we got back to our room, there was an autographed picture by Minnie Mouse with our daughter's name on it. It was so precious!!!
We had my older daughter's first birthday party at Rainforest so that family members not coming into the park could celebrate with us. They got us a huge table and really did things up nice. We sat there for quite a while opening presents and even brought in our own cake. The waiter even bought my daughter one of the RFC plates from the gift shop before we left. He was so sweet.
We did my husband's birthday at Tony's once. That wasn't so exciting, but I think he did get some kind of dessert or cake. I think an adult birthday was not quite as special as a kid birthday for some reason!
I forgot! We also did birthdays at Garden Grill and the buffet at Fort Wilderness. At Garden Grill, some of the characters came over to help sing when they brought out the cake. The Trails End (I think that is the name) was actually the best dessert. The cake was really big!!
It almost seems like we must have been faking it to have this many birthdays in the park, but we went 3 times for my older daughter's birthday, once for my younger daughter's birthday, and once for my husband's. And each of those times, we had a party not on the actual birthday that included family and then a small party just for the 4 of us on the actual birthday!