Although food seems to be mostly a novelty item in game- Perhaps the (or a few different) Human chief(s) could unlock regional Terran dishes such as Hot Dogs, Pizza, Schnitzel, Tacos, Borscht, Gyros, etc. We already have Catfish and Jambalaya.
A nicer eating and drinking animation would be nice too.
IIRC replicated food is not really chemically/nutritionally the same as the real thing anyway, but is instead merely designed to mimic the texture and flavor. On the microscopic level and below it's like comparing a Disneyland fake wilderness with real trees and landscape: the aesthetic is similar, but the materials and structure are completely different. Star trek being utopian in outlook though, it is presumably actually quite healthy compared to the modern concept of processed/synthetic foods. Counselor Troi can probably eat nothing but ice cream for every meal if she wants, since the replicator version can actually be superfood that just tastes & feels like ice cream.
...But seeing as how mankind has "outgrown" such things as non-classical music and recorded (as opposed to live stage) performance drama, people still replicate overcooked lima beans and save ice cream for dessert.
I think those are actually shout-outs to the shows (Trip and Sisko, respectively) rather than random earth dishes. I'm not sure off the top of my head, but I think all the Earth foods in the game are similar shout-outs.