I remember Kirk cooking in Star Trek: generations, when he and Picard are in the Nexus. But I would not count that one singular instants for this thread. There is no evidence that he was particularly good at cooking the way that Benjamin Sisko clearly was.
Nick Starkey, Kevin Kline’s character in The January Man. At least I hope he was a good chef; his ex-girlfriend was legally obligated to eat one meal he prepared…
In comic books, Reuben Flagg and Judah “The Hammer” Maccabee had mad cooking skills.