Preheat the oven to 400 degrees F.
Butterfly the chicken breasts by cutting them in half lengthwise. Make sure the chicken is room temperature and patted dry of any moisture before preparing this dish.
Place the chicken in a greased baking dish and season with salt & pepper.
In a mixing bowl combine the cream cheese, Tony's creole seasoning, Italian seasoning, spinach, & sundried tomatoes. Mix until combined.
Spread the cream cheese mixture over the chicken breasts as evenly as you can.
Top with mozzarella and Pecorino Romano cheese and cracked black pepper.
Bake at 400 degrees F. for 30 minutes in a preheated oven.
ENJOY!