01 - Pat dry the chicken breasts and evenly season both sides with salt, black pepper, and dried Italian herbs.
02 - Heat olive oil in a large skillet set over medium-high heat. Add chicken breasts; sear each side for 5 to 6 minutes until golden brown and almost cooked through. Transfer chicken to a plate and keep aside.
03 - Reduce skillet to medium heat. Add minced garlic and sliced sun-dried tomatoes; cook for 1 to 2 minutes until aromatic.
04 - Pour in heavy cream and chicken broth, stirring well to combine and scrape any browned bits from the pan.
05 - Incorporate grated Parmesan cheese, stirring until melted and the sauce thickens, about 2 minutes.
06 - Stir in fresh baby spinach and cook until just wilted, roughly 1 minute.
07 - Return seared chicken breasts to the skillet, nestling them into the sauce. Simmer gently for 5 to 8 minutes until fully cooked and juices run clear (internal temperature at 165°F).
08 - Garnish with fresh basil leaves and extra grated Parmesan as desired.