Bring a medium saucepan of lightly salted water to a boil. Add pasta and cook according to package directions, or until al dente.

While pasta is cooking, toast nuts in a dry skillet over medium-low heat, stirring often, until lightly toasted. Remove nuts from skillet and set aside.

Place spinach in the bottom of a colander and drain pasta over spinach to wilt it. Return pasta and spinach to saucepan and stir in the olive oil. Add the remaining ingredients and toss until well combined. Season to taste with salt and pepper.

Serve with more Parmesan cheese sprinkled on top.