Prep: Heat oven to 425°F and grease or line a large baking sheet with parchment paper for easy cleanup. Wash, dry and halve or quarter the potatoes depending on their size.
Combine: Place the potatoes, melted butter or oil and salt and pepper in a large mixing bowl and stir to coat all of the potatoes.
Roast: Pour the potatoes out onto the prepared baking sheet and bake for 20-25 minutes or until they turn golden brown, flipping them over halfway through the baking time.
Enjoy: Season with extra salt and pepper if desired, and serve immediately. Leftover roasted potatoes will stay fresh in an airtight container in the fridge for up to 4 days, or in the freezer for up to 2 months.