In a medium bowl, blend together cream cheese, shredded mozzarella, grated Parmesan, chopped parsley, and garlic powder until smooth.

On a clean surface, arrange salami slices in a single layer, slightly overlapping each slice.

Spread a thin layer of the cheese filling over each slice of salami.

Starting from one end of a salami slice, roll it up tightly, ensuring the filling stays tucked inside.

Insert a toothpick or skewer through the center of each roll to keep it intact.

Arrange the salami roll ups on a serving plate and serve immediately, or refrigerate for up to 2 hours.