Soak the cashews in boiling water for 10 minutes.
Blend the soaked cashews, lemon juice, garlic, truffle oil, salt, pepper, Parmesan cheese, and nutritional yeast (if using) until creamy.
Cook the homemade or store-bought pasta according to package instructions.
Drain the pasta over the spinach to wilt it.
Add the cooked pasta and spinach back to the pot.
Stir in the creamy cashew sauce and chopped marinated artichokes.
Top with additional Parmesan cheese, black pepper, and red chili flakes.
