Gemelli with Kale Pesto and Olives

Ingredients

Pesto:
1/2 cup walnut halves
1 clove garlic
3 cups baby kale
2/3 cup extra-virgin olive oil
1/2 teaspoon kosher salt
1/8 teaspoon red pepper flakes
1 teaspoon orange zest (1 large orange)
1/4 cup orange juice (1/2 orange)
1 cup freshly grated Parmigiano Reggiano

Pasta:
1 pound gemelli pasta
One 2 1/2-pound rotisserie chicken, meat picked and shredded (about 3 cups)
1 cup red or green Cerignola olives, pitted and roughly chopped
1/2 cup pitted Kalamata olives, roughly chopped
1/2 teaspoon kosher salt
1 cup freshly grated Parmigiano Reggiano
Extra-virgin olive oil, for drizzling

Directions

For the pesto: Place the walnuts, garlic and kale in a food processor. Pulse until coarsely chopped. With the motor running, drizzle in the olive oil to form a smooth sauce. Add the salt, pepper flakes, orange zest, orange juice and Parmesan. Pulse until well blended. Pour the pesto into a large bowl and set aside.

For the pasta: Bring a large pot of salted water to a boil. Add the gemelli and cook until al dente, 8 to 10 minutes. Drain the pasta, reserving 1 cup of the pasta water. Add the hot pasta to the bowl with the pesto, and toss well with a rubber spatula to coat. Add the chicken, the Cerignola and Kalamata olives, and the salt and Parmesan. Toss again. Loosen with pasta water as needed. Finish with a drizzle of olive oil if desired.