Make a slit or pocket in each piece of salmon, about 3/4 of the way through, making sure not to cut all the way.
In a small bowl, combine the softened cream cheese, chopped spinach, mashed garlic, Parmesan cheese, and black pepper.
Fill each slit in the salmon with the cream cheese mixture, ensuring it's packed in well.
Mix together the seasoning ingredients and rub them onto each piece of salmon.
Place the stuffed salmon pieces in a greased oven-safe skillet (a 10-inch cast iron skillet works well).
Broil the salmon for about 13 minutes, or until it's cooked to your liking.
Plate up your delicious stuffed salmon and savor every bite!