Pappardelle with Summer Squash and Arugula-Walnut Pesto

• 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/or yellow squash (1 1/4 pounds), very thinly sliced lengthwise on a mandoline
• 3 tablespoons fresh lemon juice

1. In a small skillet, toast the walnuts over moderately low heat until golden, about 5 minutes.
2. Finely chop 1/2 cup of the walnuts; coarsely chop the rest for garnish.
3. In a food processor, pulse 2 cups of the arugula until finely chopped; scrape into a large bowl and stir in the 3/4 cup of olive oil, the garlic, grated cheese and finely chopped walnuts.
4. Season the pesto with salt and pepper.
5. In a large pot of salted boiling water, cook the pappardelle until al dente.
6. Drain the pasta and add to the pesto in the bowl.
7. Add the zucchini and toss to evenly coat.
8. Stir in the lemon juice and the remaining 2 cups of arugula and season with salt and pepper.
9. Transfer the pasta to a platter, drizzle with olive oil and garnish with the coarsely chopped walnuts and cheese shavings.

walnut halves, arugula, extravirgin olive oil, garlic, cheese, kosher salt, pepper, firm, lemon juice

Taken from www.foodandwine.com/recipes/pappardelle-summer-squash-and-arugula-walnut-pesto (may not work)