Off the top of my head I can think of only a few.....but then again I don't have a lot of dislikes.
Broccoli and Cauliflower. I really detested these growing up but when I became pregnant with my first son (20 now) I picked some up at the grocery store as they caught my eye and I found that my taste had changed. I still love them to this day.
Cilantro.....this was an aquired taste....didn't take a really long time though....but I really like it now. Same thing with the herb Thyme.
Se non supporta il calore, vattene dalla cucina!