Chewy rye berry salad with mushrooms, parsley and walnuts (v)

I brought this salad over to a friend’s for dinner (I can’t believe we’re doing that now), so I did most of it the day before and then assembled at their place. You can cook the mushrooms, rye berries, and onions/garlic, throw them together, and then have the rest of the stuff cleaned and prepped in separate containers so that when you combine them you’…