If I stop eating sugar, I lose all taste for it and find most deserts bland and gross. I can very easily re-acquire it though.
I stopped cooking meat a few years ago, and now a mouthful of bacon is almost inedibly gross, and like most people, I used to love bacon, so that's a neat one for me. I still like meat, and will eat it outside of the house, but it tastes like junk food now, kind of gross, but fun gross once in awhile, sort of like poutine.
I never lose my taste for potato chips though, no matter how long I go without. However, I have never overly liked fries. They're fine, but I could always take or leave them.
Overall though, after years of eating a lot of veggies and whole grains, even if I enjoy a meal that's off my regular diet, I always crave getting back to it. It feels like a deviation from my normal, and my system doesn't like it.