In a small bowl, whisk together all ingredients for the dressing Reserve the dressing to develop flavor while you make the salad.
Split the zucchini length wise and scoop out the seeds Cut the zucchini halves crosswise into ½ inch pieces.
Heat olive oil in a frying pan over medium heat, until it shimmers Add zucchini to the pan, and season with salt and pepper Sauté until lightly browned but still firm.
Trim and cut the salad Place the romaine, arugula and chives in a large bowl Stir in the cooked zucchini.
Roast the nuts briefly in the same pan as the zucchini Season with salt and pepper Spoon nuts onto salad, and drizzle with salad dressing.