Preheat the oven to 350 degrees F. Line a baking sheet with parchment paper.
Add the Parmesan, rosemary, and black pepper to a small bowl and mix to combine.
Use 1 tablespoon of the Parmesan mixture for each stick, and place in a mound on the baking sheet. Leave at least 1/2-inch between each stick.
Use the back of a spoon to spread the cheese thin and form it into a rectangle.
Bake for 5-7 minutes, keeping a close eye on them, until they turn golden.
Remove from the oven and allow to cool on the baking sheet. Use a spatula to carefully lift them off the sheet and use for garnish.