Begin by preheating your oven to 425°F (220°C). While the oven warms up, prepare your baking sheet by spraying it generously with cooking spray or rubbing it with olive oil to prevent the potatoes from sticking.

In a large mixing bowl, combine the olive oil, Lipton Onion Soup Mix, garlic powder, and black pepper. Stir until the mixture is well blended, creating a flavorful paste that will coat the potatoes evenly.

Add the cut potatoes to the bowl containing the seasoning mixture. Using your hands or a spatula, toss the potatoes thoroughly, ensuring each piece is evenly coated with the seasoned oil.

Spread the seasoned potatoes in a single layer on the prepared baking sheet. This arrangement allows for even roasting and helps achieve a crispy exterior on the potatoes.

Place the baking sheet in the preheated oven and roast the potatoes for 35-45 minutes, or until they are golden brown and crispy on the outside. About halfway through the cooking time, use a wide spatula to flip the potatoes to promote even browning.