01 - Preheat the oven to 350°F.
02 - Season 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 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 soft. Add garlic and cook another 30 seconds until fragrant.
05 - Reduce heat to low. Add cream cheese and milk, stirring until smooth and combined. Stir in Parmesan cheese and the remaining Italian herbs.
06 - Return the chicken breasts to the skillet, turning to coat evenly with the cream cheese sauce.
07 - Transfer the skillet to the oven and bake for 20–25 minutes, or until chicken is cooked through and reaches an internal temperature of 165°F.
08 - Garnish with chopped fresh parsley before serving.