The skin on an apple
Ground meat of any kind
Melted white cheese
Lima beans (but really, who likes lima beans anyway?)
The crust on any bread
Pizza, except for the crust (go figure)
Any rice other than white rice
Chicken in breast form
Any cold cereal other than Crispix (but I've never given him the sugary kind, so he very well may like that stuff if I gave him a chance)
Onions (good boy!)
Soup of any kind
Oh, no, I'm not raising a picky eater or anything over here. I think if he could live on bread and butter, he would.
You try feeding him this stuff "at least 15 times" so that he can learn to like it. Let me know how it goes.