Seared Asian Salmon with Caramelized Onions and Lemon-Cilantro Edamame Puree

So I made this last weekend for lunch, because I was feelin’ fancy, and I wanted something a little different from the lazy salads I’ve taken to eating for the past few days. I had some salmon and edamame in the freezer, and thus began the birth of this dish, which I will now be making again. And again. And then probably some more after that. It was, in a word, awesome.