Pappardelle with Summer Squash and Arugula-Walnut Pesto INGREDIENTS 3/4 cup walnut halves 4 cups packed arugula leaves (4 ounces) 3/4 cup extra-virgin olive oil, plus more for drizzling 1/2 teaspoon finely grated garlic 1/2 cup freshly grated Parmigiano-Reggiano cheese, plus shavings for garnish Kosher salt Pepper 12 ounces pappardelle 3 firm, fresh medium zucchini and/orContinue reading