Preheat the oven to 400°F.
Peel and chop the purple-top turnips into uniform pieces.
Toss the turnip pieces with olive oil, salt, and pepper.
Spread the turnips in a single layer on a baking sheet.
Roast in the preheated oven for about 30-35 minutes, or until the turnips are tender and golden brown, stirring halfway through.
