Tasty lobster roll
The SF Examiner critic recently did a rundown of SF lobster rolls:
He likes Woodhouse and a place in South SF called New England Lobster Company.
The best of the genre that I've in the Bay Area doesn't use lobster at all: the Louisiana crawfish roll at Pican (in Oakland). You'd have to check to see if they have it on the menu now.
Prime Dip in the TL or on Fillmore has a tasty Lobster Dip. For me, it's rich enough on its own; the accompanying portion cup of "hot melted dill butter" sends it over the top. Not to mention the side dish. I usually split the lobster dip with someone, which makes the price of $14.99 for one sandwich a heck of a deal.