Swedish meatballs
From The Great Machine
One of the more famous bits of Babylon 5 trivia (mentioned by G'Kar during the episode Walkabout) is the fact that every species in the known universe has a dish comparable to what the Humans call Swedish meatballs; for example, the Minbari refer to it as flarn, while the Narn dish is known as breen.
The Lurker's Guide offers the following humorous speculation:
"Since the Vorlons have manipulated all the younger races, perhaps Swedish meatballs are really a Vorlon delicacy, part of an intricate plan to defeat the Shadows through culinary unity." (Source: The Lurker's Guide to Babylon 5 - 3x16 Walkabout )
