Combine the zest, lemon juice, mascarpone, salt, pepper, and nutmeg in a bowl. Whisk to combine.
Bring a pot of water to boil and salt generously. Cook the pasta until al dente, taking it off the heat about 1 to 2 minutes before you would normally remove it. Drain, reserving about 1/2 cup of the pasta water.
Return the pasta to the pot, and set over low heat. Stir in the mascarpone sauce. Add the spinach and toss so that the spinach begins to wilt.
Add about 1/4 cup of the pasta water (more if necessary) to keep the sauce fluid but not too watery.
Continue to cook and toss until the spinach is cooked. Add the hazelnuts and stir to combine.
Parenting and Lifestyle Dad Blogger.
If you enjoyed this post feel free to share it, or if you would like to engage with me you can find me on TWITTER @manii_dadE or INSTAGRAM @manii_dad
Follow my blog so you never miss out!