01 - Preheat oven to 425°F. Line a baking sheet with parchment paper or foil for easy cleanup.
02 - In a large bowl, toss halved Brussels sprouts with olive oil, kosher salt, black pepper, garlic powder, and smoked paprika until evenly coated.
03 - Spread seasoned Brussels sprouts in a single layer with cut side down on the prepared baking sheet.
04 - Roast for 22 to 25 minutes, flipping halfway through, until golden brown and crispy on the edges.
05 - Transfer to serving plate while hot. Optionally garnish with fresh lemon juice or grated Parmesan cheese.