Oh man, we have a little taco station here in Ocean Shores, WA ran by a little old Swedish lady. But, it's probably some of the best authentic Mexican food I've ever had. Nothing better than bringing a few lawn chairs out onto the beach, watching the pacific ocean while eating a burrito the size of a large cat or a few fresh Carnitas tacos.
I think I went there last time I dropped down to OS for a long weekend binge.
Much as I hate the cold, rain, grey, rain, fog, rain, hippies, rain, traffic, rain, politics and rain of WA I have to admit that we have some bitchin' food up here, seafood especially.  If you ever drive through Ever-rot on your way to somewhere worthwhile (lord knows everett aint) you should stop by a little 24 hour mexican joint we got called Mimo's.  The chimichanga's are fuckin epic tasty and ginormous.