You've heard right! In my opinion Minnie's Breakfast is the best! It's set up in buffet style with servers helping out. The food was very good. When we were there about 2-1/2 weeks ago we saw: Minnie, Pooh, Eeyore, Tigger, Hook, Max, Chip, Dale, and the Fairygodmother. The interaction was awesome. All the characters hung out and played and even a few came back two and three times. I recommend it highly.
They do only have breakfast with characters at the Plaza.