Serious Eats - seriouseats.com

Scallops. Tried some on vacation last year, and thought they were the best thing ever.

Dressing, Calamari, Polish sausages...random items huh? Lol.

Black eye peas. Hated them my whole life. In Dallas my mother in law would make me swallow 3 of them with a glass of water on new year's day for good luck. When I didn't have that family anymore I had to start making them on my own. I discovered fresh ones were pretty tasty. One year I forgot to buy them and there were no fresh to be had. I bought canned and my black eyed pea, turkey chili was born. I made some this NYD and commented that I can't imagine that I never liked them. They're so yummy.
The rule in our house is, you have to take one bite at least once a year. Just to make sure you still don't like it.

Quite a few vegetables that I was originally served from the can as a child--canned green beans and spinach come to mind--and canned pears and peaches in syrup. Fresh all of these things are delicious--but I still don't like canned vegetables or fruit!

Avocado.

And like others, foods I tried as a kid and hated, I now like. The most notable being asparagus.

Talking about hating things as a kid, the only food that I was introduced to that I hated from the first moment and forever after was coconut. Pretty much everything else that I was aware of, I liked. That includes beets, spinach, broccoli, and all the rest of the foods that are usually on the "most hated" lists.

Oh yeah, and licorice candy. Never liked it, still don't, but it's not like that issue comes up very often. I do like anise in Asian dishes, though.

I still don't like coconut in sweets, and I don't like shredded coconut in any form, but coconut milk in curries or in rice is okay.

I developed a hatred for raisins, but it was a mental hatred rather than a taste issue, at an age when I still believed in the Easter Bunny. I have some chocolate covered raisins that came in a Christmas gift basket. I might give them a try just to see if the hatred is still alive and well.

Prunes and other dried fruits are fine, though.

Brussels sprouts and spinach. Hated even the smell of brussels sprouts boiling growing up, but once I learned how to grill or pan-fry them myself (thanks SE!) I fell in love. Spinach I still have a hard time eating cooked, but raw spinach leaves are lovely.

Mustard. Would never touch the stuff as a kid. One day, I ordered a hot dog at a bowling alley snack bar, served loaded with mustard. Tried to wipe off as much as possible. When I ate the dog, I could taste the mustard and decided that it was pretty good. Been a fan ever since.

Oh beets, for sure. My mom was on one of those weird 80s diets when I was little, and I remember her choking down canned beets and saying they taste like dirt. I believed her, and never really came face to face with a cooked beet until I was 21, when I had to juice them or cook them at my job. It was several months before my Polish supervisor got me to try one, and several more tries before I admitted liking them.

My mom still wont touch them, though.

Corn!!

Grew up gagging on canned corn. Never ate it for 25 years, then one day decided to grow some in my veg garden for my husband and kids. OMG!!!!! Talk about an Eureka moment!! I steamed the fresh corn on the cob and haven't been able to put it down since. Sweet, juicy, with butter and salt!!! I only will eat it fresh on the cob, grilled, boiled or steamed.

Every year I try to acquire a new taste. This year I'm working on yogurt. I got some granola today, and that helped a lot. Last year was beets. The year before was raw tomatoes. Since yogurt is going really well, I may give eggs another try later this year.

Raw oysters!

I'll second CityMinx and the soft eggs. I used to almost wretch at my father's over-easy eggs, especially when he sopped up the yolk with toast. Tried it myself recently and love it! And egg-in-a-hole? Heavenly.

Mustard is another one for me. I would not go near the stuff as a kid but now I love it.

For years I resisted sushi and sashimi. Though I had always been a huge seafood fan (even eating raw oysters) for some reason I could never wrap my head around eating raw fish in this form. Back in the 80's, when sushi was becoming all the rage, I tried it, and fell in love. The rest is history!

Brussel sprouts! I had only had them steamed. Once I tried them roasted, it was all over.

I absolutely hated fish as a kid but now it is my absolute favorite. I also thought I hated spinach but I had only tasted plain frozen. Then I tried it sauteed with olive oil and garlic and I fell in love.

I remember hating onions when I was a kid. My mom would put them in home fries, meat loaf, and assorted other dishes, and I'd pick them out. She said, "Oh, Billy, you can't even taste them!" To which I replied, "Then why do you put them in?"
But now, I love 'em! Can't imagine not having onions. She should have smacked me!

I hated raw tomatoes for a long time. Now I eat halved cherry tomatoes and fresh mozz as a snack when I can get it in season. So glad I found the way :P

Pesto
Pickles
bratwurst

Purely based on their names and appearance. I love them all now.

Brussel Sprouts!!!! I am a recent convert. Balsamic glazed? Delicious. Shredded with pancetta? Delectable. Dry roasted w/ salt and pepper? Devine.

This delicious veg. has got a bad rap in pop culture

asparagus
most seafood
brussell sprouts
chineese food in general
blue cheese
pot roast and
pork
I think almost all of those childhood dislikes stem from a mother who was very good as some things but abismally bad at others.
oops I also had a childhood hatred of chocolate

Oh, there are so many... oddly enough, my parents never really nagged at me to eat my vegetables as a child (although vegetables were almost always present at the dinner table, usually in the form of canned peas, corn, green beans, or mixed vegetables). In fact, my parents often tried to "warn" me that I wouldn't like certain vegetables when I wanted to try them, such as mushrooms, eggplant, and spinach (all of which I immediately loved upon trying them).

I also must give special mention to brussels sprouts... I first encountered roasted brussels sprouts at a family gathering years ago, having never even seen brussels sprouts before. When I asked what they were, my father actually told me, "oh, no, you won't like those... brussels sprouts taste yucky, and they will make you sick!" I didn't try them until years later... and of course I loved them (and for the record, I have no idea where the idea came from that brussels sprouts make people sick... to this day I've never heard of such a thing, although I know that a lot of people just don't like the taste or texture, particularly when brussels sprouts are boiled to a slimy pulp).

Additionally, almost all my life I had this idea in my head that I hated goat cheese, despite having never tried it... only recently did I taste it for the first time; I tried two different varieties, and enjoyed both.

I'm sure I could come up with a much longer list, but this post is more than long enough as it is.

beets
garbanzo beans
spinach
calamari - i learned to eat them thinking they were onion rings
blue cheese
sushi rolls