Creating the Spinach Stuffed Chicken Breast is a simple and enjoyable process. Follow these easy steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Filling: In a bowl, combine chopped spinach, cream cheese, mozzarella cheese, minced garlic, Italian seasoning, salt, and pepper. Mix until well combined.
3. Prepare the Chicken: Pat the chicken breasts dry with paper towels. Use a sharp knife to create a pocket in each chicken breast, being careful not to cut all the way through.
4. Stuff the Chicken: Generously spoon the spinach filling into each pocket of the chicken breasts. Secure with toothpicks if necessary.
5. Season the Chicken: Drizzle olive oil over the stuffed chicken breasts and season with additional salt and pepper as desired.
6. Bake: Place the stuffed chicken breasts in a baking dish and bake for 25-30 minutes, or until the chicken is cooked through and reaches an internal temperature of 165°F (74°C).
7. Optional Topping: During the last 5 minutes of baking, sprinkle grated Parmesan cheese on top for extra flavor.
8. Rest: Let the chicken rest for 5 minutes after removing from the oven. This will help retain its juices.
9. Serve: Carefully remove the toothpicks. Slice and serve hot, garnished with fresh herbs if desired.

By following these easy steps, you can create a delicious Spinach Stuffed Chicken Breast that will impress everyone at your dinner table.