Summer Squash and Red Quinoa Salad with Walnuts

Name: Summer Squash and Red Quinoa Salad with Walnuts
Ingredients: 1/2 cup red or other quinoa, rinsed in a fine-mesh sieve, drained; 2 teaspoons kosher salt plus more for seasoning; 1 pound assorted summer squash; 2 tablespoons finely grated Parmesan plus 1/4 cup shaved with a peeler; 1 teaspoon finely grated lemon zest; 2 tablespoons fresh lemon juice; 1 tablespoon Sherry vinegar; 6 tablespoons extra-virgin olive oil; Freshly ground black pepper; 1/2 cup flat-leaf parsley leaves; 1/2 cup walnuts, toasted; 1/4 cup fresh basil leaves, torn