Couscous and Mixed Veggie Salad

Name: Couscous and Mixed Veggie Salad
Ingredients: 1 ½ cups couscous; 2 ¼ cups low sodium chicken broth; 1 cup fresh basil, packed; ½ cup fresh cilantro, packed; ¼ cup flat leaf parsley, packed; 2 cloves garlic; ¼ cup pistachios; ½ cup parmesan cheese; ¼ cup extra virgin olive oil; 2 tablespoon lemon juice; 2 tablespoons water; 1½ cups couscous; 2¼ cups low sodium chicken broth; 2 ears fresh corn, kernels cut from cobs; 1 cup frozen edamame, cooked according to package directions; ½ cup finely diced red onion; 4 medium green (spring) onions, finely sliced; 2 cups baby arugula; ¾ cup crumbled feta cheese, optional; Extra virgin olive oil for drizzling; Pistachios and lemon slices or wedges for garnish