@richardnosworthy this is why I hate that osm.org shows a map and search bar by default. It's a tech demo and developer tool, not a Google Maps alternative. But people keep confusing it with one because it looks similar.
OSM (which is just a database, not a map), does have restaurants in the database, but it does not store (entirely subjective) user reviews. Some applications might combine the two datasets though to achieve something similar to Google Maps, but osm.org will likely never do it.