Steak with mushrooms sided with a baked potato topped with sour cream and chives
Sour cream was a dairy product from Earth. Sour cream was paired with green onions to make "green onion dip."
When Worf and Jadzia Dax briefly called off their wedding in 2374, Julian Bashir took the opportunity to break from Kal'Hyah and order a steak with mushrooms, a baked potato, sour cream, and chives. (DS9: "You Are Cordially Invited")
In the far future, Zora prepared tacos with sour cream and cheese for Craft on "Taco Tuesday." (ST: "Calypso")