Preheat the oven to 425°F (220°C) to ensure an optimal temperature for baking the fries. This high heat is essential for achieving a crispy exterior while maintaining a tender interior.

Arrange the cut potato strips in a large mixing bowl. Drizzle with olive oil, ensuring each strip is thoroughly coated. Add the minced garlic, ground thyme, and ¼ teaspoon of seasoned salt. Toss the ingredients together until evenly distributed across the potatoes.

Remove the potatoes from the bowl and place them on a nonstick baking sheet, spreading them into a single layer to allow even cooking. Reserve the remaining oil mixture in the bowl. Bake in the preheated oven for 30 minutes, flipping the fries halfway through to promote an even, golden texture.

After the initial bake, transfer the fries back into the mixing bowl with the reserved oil. Add ½ cup of grated Parmesan cheese and the chopped parsley, tossing gently until the fries are evenly coated.

Return the fries to the baking sheet in an even layer and place them back into the oven. Continue baking for an additional 10 minutes, allowing the Parmesan to melt and form a light, crisp coating.

Remove the fries from the oven and sprinkle with the remaining ¼ cup of Parmesan cheese and the last ¼ teaspoon of seasoned salt. Serve immediately to enjoy the best texture and flavor.