Bring a large pot of lightly salted water to a boil. Add the green beans, cover and as soon as the water returns to a boil drain the beans into a colander. Set aside to cool. At this point, you could refrigerate the beans in a covered dish until you are ready to finish the salad.

When the beans have cooled, place them in a salad bowl with the walnuts, cheese and scallions. Toss together gently. Pour the dressing over the salad and toss again. Serve immediately. 396 calories/serving; GL=1, Glycals=4