01 - Pat chicken breasts dry with paper towels. Season both sides generously with kosher salt, black pepper, and paprika, pressing seasonings into the meat to adhere.
02 - Heat olive oil and butter in a large skillet over medium-high heat until butter foams. Add chicken breasts and sear for 4-5 minutes per side until golden brown and nearly cooked through. Transfer chicken to a plate and set aside.
03 - Reduce heat to medium. Add minced garlic to the skillet and sauté for 30 seconds until fragrant, being careful not to burn it.
04 - Pour in chicken broth and scrape up any browned bits from the bottom of the skillet with a wooden spoon. Simmer for 2 minutes to reduce slightly.
05 - Stir in heavy cream, Parmesan cheese, and Italian seasoning. Simmer for 3-4 minutes, stirring constantly, until cheese is completely melted and sauce coats the back of a spoon.
06 - Add fresh baby spinach to the sauce and cook until wilted, about 1-2 minutes, stirring gently to coat leaves evenly.
07 - Return chicken breasts to the skillet, spooning sauce over the top. Simmer for another 3-5 minutes until chicken reaches internal temperature of 165°F. Garnish with chopped fresh parsley before serving.