01 - Pat the chicken breasts dry with paper towels. Season both sides generously with kosher salt, freshly ground black pepper, and paprika, pressing the spices 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, using a wooden spoon to scrape up any browned bits from the bottom of the skillet. Let simmer for 2 minutes to reduce slightly.
05 - Stir in heavy cream, freshly grated Parmesan cheese, and Italian seasoning. Simmer for 3–4 minutes, stirring constantly, until cheese is completely melted and sauce begins to thicken.
06 - Add fresh baby spinach to the sauce, tossing gently to coat. Cook for 1–2 minutes until spinach is just wilted.
07 - Return chicken breasts to the skillet, spooning sauce generously over the top. Simmer for another 3–5 minutes until chicken reaches an internal temperature of 165°F. Garnish with chopped fresh parsley before serving.