Mister O's

Let's hope it's not named after the health rating.

Mister O's is a restaurant in Portland, Oregon, owned by Mister O. It has a bar.

Fiction

Marvel The Transformers comics

"O" was at Mister O's when he watched a television broadcast of Ted Koppel reporting on the recent Decepticon attacks. While he was questioning the lack of information Koppel had, "O" was scared by his father wearing an Optimus Prime costume. Mister O noted how the giant robot panic was good for business, as curious reporters and worried townsfolk packed into the restaurant. "O" was angered by his father's lack of seriousness regarding the situation and stormed out. Outside, he witnessed the Rolands leaving Portland out of fear. The Last Stand

2005 IDW continuity

Verity Carlo, using the alias Fisitron, finished writing datalog 332 of Wreckers: Declassified at Mister O's after returning to Earth, detailing her adventures with the Wreckers on Garrus-9. Last Stand of the Wreckers #5