Preheat your oven to 400 degrees f. and line a large rimmed baking sheet with parchment paper.
In a large bowl add your prepped radishes. Drizzle with oil and sprinkle with spices, then toss to coat well. Arrange in a single layer on your prepared baking sheet.
Roast for about 30 minutes, or until golden and tender-crisp.
Serve hot, warm, or cold, garnished with freshly chopped parsley.
Enjoy!