Clean the potatoes. Roughly peel strips of the skin from each potato, leaving a few strips of the skin intact. Using a crimped knife (or a regular will work just brilliantly, as well), slice the potatoes into 1/4″ pieces.
Place all of the sliced potatoes in a large bowl. Drizzle the olive oil over the potatoes, then stir to evenly coat. Add the panko, parmesan, garlic salt, and pepper. Stir again, making sure each of the potato slices has a kiss of oil, panko, and parmesan. Spread the potatoes onto a large parchment covered baking sheet. Bake in an oven preheated to 450 degrees for 18-25 minutes, or until the cheese and panko is golden brown and your desired crispiness is achieved.
Sprinkle with a pinch of fresh parmesan and chopped parsely. Serve immediately alongside your favorite burgers, steak, or barbecued chicken. Enjoy the indulgence!