Step 1

In a large pot of salted boiling water, cook pasta according to package directions.

Step 2

Meanwhile, in a medium bowl, stir together the ricotta, olive oil, parmesan, garlic, lemon zest and juice, and chili flake, if using. Season with salt and pepper stir to combine.

Step 3

Reserve 1/2 cup of the pasta water and drain well.

Step 4

Return spaghetti, ricotta sauce, reserved pasta water, and arugula to the pot and stir to coat the pasta in sauce, adding more pasta water if needed.

Step 5

Serve with additional parmesan cheese, if desired. Enjoy!