- Cook the fettuccine or spaghetti according to package instructions until al dente. Drain and set aside. 
- In a large skillet, heat the olive oil over medium heat. Add the chicken pieces and season with salt and pepper. Cook until the chicken is golden brown and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside. 
- In the same skillet, add the minced garlic and sauté for about 1 minute until fragrant. Be careful not to burn it. 
- Pour in the heavy cream and bring to a simmer. Stir in the Parmesan cheese and Italian seasoning, mixing until the cheese is melted and the sauce is smooth. 
- Add the cooked chicken back into the skillet along with the fresh spinach. Stir until the spinach wilts and everything is well combined. 
- Toss the cooked pasta into the skillet, mixing until the pasta is coated with the creamy sauce. Adjust seasoning with salt and pepper if needed. 
- Serve immediately, garnished with chopped parsley.