Fava green, radish, and asparagus salad

A few weeks ago, there were fava greens in the box.

I used them for a salad.  Removed the thick stems, washed them, then gave them a rough chop.  Added radishes and raw asparagus.  Dressed it with lemon juice, olive oil, salt and pepper.  

It was not the husband's favorite salad; he said something was missing from it.  However, as we don't get fava greens often, I don't expect I'll need to figure out how to improve this one.  Guessing it might have been better with a creamy dressing.  And some tomatoes.  I am ready for tomato season.