Combine the cream cheese, mayonnaise, mozzarella, feta, garlic, and spinach (squeezed as dry as possible) and sun dried tomatoes.
Butterfly the chicken so it opens like a book. Spread the cheese and spinach mixture on the bottom part of the chicken, fold the top of the chicken over the filling and secure with a toothpick.
Combine the spices together to make a rub. Rub the outside of the chicken with the seasoning mixture.
Heat an oven-safe skillet, such as a cast iron skillet, to medium heat and melt the oil in the skillet. Sear the chicken in the pan for 2-3 minutes on each side and place in the oven for 20 minutes at 350 degrees F, or until cooked through.
Allow the chicken to rest for at least 5 minutes before cutting.
Notes
Net carbs per stuffed chicken breast: 3.5
Storage and Reheating
To store this stuffed chicken, place it in a glass or plastic container with an airtight lid. Cover it and refrigerate for up to four days.
To reheat, place it on a microwave-safe plate and warm in 30-second increments until your desired temperature is met.
You can also warm it in the oven in a greased dish at 350 degrees for ten minutes.