Cook Chicken: Season chicken with salt, pepper, and Italian seasoning. Heat olive oil in a large skillet over medium-high heat. Sear chicken for 5–6 minutes per side until golden and cooked through. Remove and set aside.
Make Sauce: In the same skillet, sauté garlic for 1 minute. Pour in chicken broth, scraping up browned bits. Stir in heavy cream and Parmesan, whisking until smooth.
Combine: Return chicken to the pan and simmer for 3–4 minutes, letting the sauce thicken and coat the chicken.
Serve: Garnish with fresh parsley and serve hot with pasta, rice, or crusty bread.