Steps
1. Preheat oven to 375°F (190°C).
2. Cut a pocket into the side of the chicken breast.
3. In a bowl, mix mozzarella, cheddar, garlic powder, oregano, salt, and pepper.
4. Stuff the cheese mixture into the chicken pocket.
5. Season the outside of the chicken with salt and pepper.
6. Place the stuffed chicken breast on a baking sheet.
7. Bake for 25-30 minutes or until chicken is cooked through.
8. Serve hot and enjoy!