Prather Ranch Meat Co.
1 Ferry Building Ste 32 (at The Embarcadero)
San Francisco, CA 94111
This butchery is a must-stop spot inside the Ferry Building, offering all manner of sustainable meats, as well as sandwiches and other prepared tastiness (think chili dogs and lamb burgers) if you want to eat something more immediately. There's not much room to sit, but get it to go and enjoy your meat along the Embarcadero. They also order a meat of the month delivery service if you're into that sort of thing.