Preheat the oven to 200°C (fan-assisted).
Arrange the frozen fries on a baking tray lined with parchment paper, ensuring they are spread out evenly.
Bake the fries according to the package instructions until they are golden brown and crispy.
Once the fries are cooked, remove them from the oven and sprinkle the grated cheddar cheese evenly over the hot fries.
Return the tray to the oven and bake for an additional 3-5 minutes, or until the cheese is melted and bubbly.
Remove the fries from the oven and season with salt and black pepper to taste.
Garnish with chopped spring onions and fresh parsley, if desired.
Serve the cheese fries hot with a side of sour cream for dipping.
