01 - Preheat oven to 350°F.
02 - Season the chicken breasts evenly with salt, pepper, and half of the Italian herbs.
03 - In a large ovenproof skillet, melt the butter over medium heat. Add the chicken and sear each side for 2–3 minutes until lightly golden. Remove and set aside.
04 - In the same skillet, sauté the chopped onion for 2–3 minutes until softened. Add the garlic and cook for another 30 seconds until fragrant.
05 - Reduce heat to low. Add the cream cheese and milk, stirring constantly until smooth and well combined. Stir in the Parmesan cheese and the remaining Italian herbs.
06 - Return the chicken breasts to the skillet, turning to coat evenly with the cream sauce. Transfer the skillet to the oven and bake for 20–25 minutes, or until the chicken is cooked through (internal temperature reaches 165°F).
07 - Remove from the oven and garnish with chopped fresh parsley before serving.