The only one I can think of is tomatoes. And I never really disliked those...I just wanted to be like my aunt Dawn! She was over for dinner when I was about 5, and she said something about hating tomatoes. I'd always liked them before, but decided that if she hated them, I hated them.
I refused to eat tomatoes for about 10 years after that. After awhile I was genuinely convinced that I didn't like the taste of them. Love them now that I gave them another chance, though.
![Grin ;D](https://www.talk.uk-yankee.com/Smileys/classic/grin.gif)
I must've been a weird kid, because I always liked avocados and broccoli and such. Oh, I did hate mustard. That's another one I actually like now. But most of the stuff that I disliked then I think I still dislike now.