[Capsicum]

^^

Well, actually, the fish dish pic you're posting doesn't look that particularly exotic to me. Even if most people would pass on taking the head, the way the fish looks prepared to me (eg. with lemon, and the other garnishes and vegetables) doesn't look that different from many western dishes.

You can find many whole-fish dishes (though maybe steamed is more typically Chinese?) in western cuisines like North American, European, Mediterranean, often roasted, grilled, poached, etc.