In a bowl, combine the softened cream cheese, Dijon mustard, garlic powder, and Italian seasoning. Mix until smooth and well blended.
Lay out a flour tortilla on a clean surface. Spread a generous amount of the cream cheese mixture over the tortilla, leaving a small border around the edges.
Layer several slices of salami over the cream cheese, followed by a sprinkle of shredded mozzarella cheese and a handful of fresh spinach leaves.
Carefully roll the tortilla tightly from one end to the other to form a compact log.
Repeat the process with the remaining tortillas and filling ingredients.
Once all tortillas are rolled, wrap them in plastic wrap and refrigerate for at least 30 minutes to firm up.
After chilling, remove the wraps and use a sharp knife to slice each tortilla roll into pinwheels about 1-inch thick.
Arrange the pinwheels on a serving platter and garnish with fresh parsley for an elegant touch.