Bring a large pot of salted water to a boil and cook the pasta according to package directions. Drain and set aside.
Heat the olive oil in a large skillet over medium heat. Add the chicken pieces and season with salt and pepper. Cook until the chicken is browned and cooked through, about 6 to 7 minutes.
Add the minced garlic and chopped sun-dried tomatoes to the skillet. Stir for 1 minute until the garlic becomes fragrant.
Pour in the heavy cream and sprinkle in the Italian seasoning. Bring the mixture to a gentle simmer, then stir in the Parmesan cheese until the sauce thickens slightly.
Add the fresh spinach and stir until it wilts into the sauce, about 2 minutes. Taste and adjust salt and pepper if needed.
Add the drained pasta to the skillet and toss everything together until the pasta is evenly coated with the creamy sauce.