Cook the pasta according to the instructions on the box.
In the meantime, cut the chicken into strips. Cook for 4-5 minutes in a pan over medium-high heat with a dab of butter. Add the lemon zest and stir frequently, until lightly golden.
Add the cream and spinach, and season with salt & pepper. Simmer until the pasta finishes cooking. (about 5 minutes)
Strain the pasta and mix together with the chicken and sauce. Top with parmesan. Enjoy!
Average estimated amount for one serving