A friend who keeps Kosher is coming to town for a conference. I'm familiar with the Kosher and vegetarian places in the East Bay, less so with those in S.F. Can you suggest places that meet one, two or three of the following criteria?
1. Kosher or strictly, verifiably veggie or vegan;
2. Within walking distance (let's say 3 miles) from the intersection of Lake and Arguello.
3. Tastes good, not bad.