01 - Pat chicken breasts dry, then season both sides evenly with Italian seasoning, salt, black pepper, and paprika.
02 - Heat olive oil and butter in a large skillet over medium-high heat; add chicken breasts and sear for 5 to 6 minutes per side until golden brown and cooked through. Transfer to a plate and cover to keep warm.
03 - Reduce skillet heat to medium, add minced garlic and sauté for 1 minute until fragrant.
04 - Pour in heavy cream and chicken broth, stirring to deglaze the pan; bring the mixture to a gentle simmer.
05 - Stir in Parmesan cheese and sun-dried tomatoes, simmer for 2 to 3 minutes until the sauce thickens slightly.
06 - Add fresh baby spinach and cook for 1 to 2 minutes until wilted.
07 - Return chicken to the skillet, spoon sauce over, and simmer for 2 to 3 minutes to heat through.
08 - Plate the chicken, garnish with fresh basil leaves and additional Parmesan cheese if desired.