We've had a whole lot more bad experiences outside of Disney; even so, there are a few places we would rather not return to.
Rosie's All-American Cafe: burgers were not too appetizing. DHS is sorely lacking in QS options overall, but Pizza Planet and Starring Rolls have worked for us.
Pinocchio Village Haus: standard food service pizza. Much prefer CHH of Pecos Bill's.
Chef Mickey's: been there, done that, better food can be found almost anywhere. In time when we have grandkids to take, we may revisit. Or, more likely we will find another restaurant with the Fab 5 characters.
Kona Cafe: We loved it our first two times. But last time we were underwhelmed. Service was slow and spotty, food was not as good. I would love to try the famed Tongo Toast, so someday we may try it for breakfast, but there are so many other options for dinner.