Season the chicken breasts with salt, pepper, and Italian seasoning on both sides.
In a large skillet, heat the olive oil over medium-high heat. Add the chicken breasts and cook for about 6-7 minutes on each side until golden brown and cooked through. Remove from the skillet and set aside.
In the same skillet, lower the heat to medium and add the minced garlic. Sauté for about 1 minute until fragrant. Add the chicken broth, scraping up any bits stuck to the pan.
Pour in the heavy cream and bring to a simmer. Stir frequently until it thickens slightly, about 3-4 minutes.
Stir in the chopped basil and season with salt and pepper to taste.
Return the chicken breasts to the skillet, placing mozzarella slices on top of each piece of chicken. Cover the skillet and allow the mozzarella to melt, about 2-3 minutes.
Plate the chicken and spoon the basil cream sauce generously over it. Garnish with fresh basil leaves.
Notes
Serve with pasta or a fresh salad for a complete meal.