A long-disused Starfleet ship taken by Nick Locarno for his Nova Fleet, which Beckett Mariner seizes in 2381 to carry off his Genesis Device and which is destroyed when the device goes off.
The USS Passaro appears in Old Friends, New Planets, the fourth-season finale of Star Trek: Lower Decks. She is an older Starfleet ship with something of the look of the Steamrunner class, and had been laid up for so long that nobody noticed when Nick Locarno stole her for his Nova Fleet.
In 2381 Mariner, held by Locarno in the Detrion system, grabs his Genesis Device and escapes in the Passaro, unlocking her with her mother's command code. A Trynar shield stops her leaving the system, so she hides in a planet's icy rings and then runs into an ion storm with Nova Fleet behind her.
Locarno disables the ship and boards her as Mariner sets the device off. The Cerritos, which has broken through the shield, beams her out, and the explosion destroys the Passaro and forms a new planet. The ship is named in memory of the model-maker Fabio Passaro.