Preheat your oven to 400 degrees F.
In a medium bowl, mix together the cream cheese, spinach, garlic, black pepper, Italian seasoning, and parsley.
Place chicken in the bottom of a baking dish. Drizzle the chicken with olive oil, and season with salt, pepper, and ½ tablespoon of Italian seasoning. Spread the creamy spinach mixture on top of the chicken and top with the sun-dried tomatoes. Sprinkle the shredded mozzarella cheese on top and cover with foil.
Bake for about 20 minutes covered, and 15 minutes uncovered or until the chicken is cooked through and the cheese is nice and golden. Serve immediately with your choice of sides and enjoy!