Lightly brown walnuts in a skillet about 1 - 2 minutes. cook
pasta and drain. Immediately add arugula and toss well.
cover bowl with a lid or tight fitting plastic wrap; set aside
until arugula is limp, about 5 minutes. stir in chives and
tomatoes. in a cup stir together vinegar, oil, reserved
Tablespoon of pasta water and remaining salt and pepper.
Pour dressing over pasta salad and toss well, sprinkle with