01 - Preheat oven to 425°F. Line a baking sheet with parchment paper or aluminum foil for easy cleanup.
02 - In a large mixing bowl, combine halved Brussels sprouts with olive oil, kosher salt, black pepper, garlic powder, and smoked paprika. Toss until all pieces are evenly coated with seasonings.
03 - Spread seasoned Brussels sprouts in a single layer on the prepared baking sheet with cut sides facing down.
04 - Roast for 22 to 25 minutes, flipping halfway through cooking, until golden brown and crispy at the edges.
05 - Transfer to serving dish while hot. Garnish with fresh lemon juice or grated Parmesan cheese if desired.