I love a fish sandwich. From a spicy taco (a sandwich of sorts),to the filling grilled fish roll served on the Galata Bridge in Istanbul,to the decadence of a lobster roll,I can't get enough of them. This version goes down a decidedly Japanese route with a gloriously crunchy sesame and panko crumb on the ocean trout and an umami-laced mayonnaise anointing the buttery brioche rolls.