Preheat the oven to 425°F.Cut sweet potatoes into evenly sized cubes or wedges.Toss sweet potatoes with olive oil, salt, pepper, smoked paprika, and garlic powder.Spread in a single layer on a baking sheet.Roast for 25 minutes, then flip the potatoes.Continue roasting for 15 to 20 minutes until golden and crispy.Serve hot and enjoy.