I'll be at a 2 day conference in SF in early June, staying at the Palace Hotel at Market and New Montgomery. I would love some recs on places within about 5 blocks walking distance that have quality food where I would feel comfortable dining solo (and where I could get to without walking through in relative safety). Anything from cheap ethnic to moderately $$ upscale. Preference for a place that takes credit. Sushi would be ideal, because I could sit at the bar, and I love sushi. But not ruling out any other great places.
I'll have only about an hour for lunch, including walking there and back. Dinner can be a more relaxed affair. If your recs would benefit from a reservation or are only open for lunch or dinner, please alert me. The dinner I have will be a Monday night, in case some places are closed Mondays.