Flounder in Fennel-Tomato Sauce

I would have never, ever guessed that fish, fennel and tomato sauce could work together, but it's a smashing success.  Flounder is specified here, but we normally make it with cod.  It's become one of our most repeated dinners.  Yummy!

http://www.epicurious.com/recipes/food/views/flounder-poached-in-fennel-tomato-sauce-51140440