What have you acquired a taste for as you have got older?

Brocolli!

I was never finicky but now I seek out anchovies (and canned fishes of any kind), blue (and other very strong/ripe) cheeses, piquant olives, cured charcuterie, etc.

Using certain words that some people find "offensive", when I really mean them.

Hummus, pita chips, and red wine.

I can't think of anything off hand, but I know it's not vegetables,

Your post has been adjusted to better fit the format of Amirite and to keep the site organised:

Red cabage

Bitter things like Brussels sprouts

Peace and quite