01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - In a mixing bowl, toss the halved radishes with olive oil, minced garlic, thyme, salt, and pepper until evenly coated.
03 - Spread the radishes in a single layer on the prepared baking sheet, cut side down for optimal browning.
04 - Roast for 20-25 minutes, stirring once halfway through, until the radishes are golden, tender, and slightly caramelized.
05 - Transfer to a serving dish and garnish with extra fresh thyme if desired. Serve warm.