01 - Season the chicken strips with Italian seasoning, salt, and pepper.
02 - In a large, deep skillet or sauté pan, heat olive oil over medium-high heat. Add chicken and cook until golden brown and mostly cooked through, about 4–5 minutes. Transfer to a plate.
03 - In the same pan, add garlic and sun-dried tomatoes. Sauté for 1 minute until fragrant.
04 - Add uncooked pasta and chicken broth. Stir, scraping any browned bits from the bottom. Bring to a boil, then reduce heat to a simmer.
05 - Return the chicken and any juices to the pan. Cover and cook for 10–12 minutes, stirring occasionally, until pasta is al dente and most of the liquid is absorbed.
06 - Lower the heat. Stir in heavy cream, spinach, Parmesan, and red pepper flakes. Simmer for 2–3 minutes until the sauce thickens and spinach wilts. Adjust seasoning as needed.
07 - Serve hot, garnishing with extra Parmesan if desired.