Staying in Friday Harbor for 5 nites a couple of weeks ago we ate at 5 different restaurants; 3 excellent, 1 OK and 1 terrible (separate story). Of the 3 excellent restaurants, we'd award our Blue Ribbon Award to Backdoor in a close contest over the other 2 excellent rest.: 'The Place' and 'Vinny's'. Perhaps the lovely outdoor setting was the deciding factor. We really didn't have a choice since all indoor tables were taken when we arrived; our good luck. The mellow solo guitar player also added to the ambience. We would have returned the following evening but the threat of rain changed our minds as once again indoors was fully booked.
Both our B&B and the leader of our kayak day trip had singled out Backdoor as their singular favorite in Friday Harbor. Indeed, locals must know a thing or two.
Anyway both food and service were excellent. The lamb sirloin is particularly noteworthy.
If in Friday Harbor don't miss the Backdoor Kitchen.