01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, toss the halved radishes with olive oil, minced garlic, sea salt, black pepper, and thyme until evenly coated.
03 - Spread the radishes in a single layer on the prepared baking sheet, cut side down, ensuring even spacing for proper caramelization.
04 - Roast for 20 to 25 minutes, tossing halfway through, until the radishes are golden, fork-tender, and lightly caramelized at the edges.
05 - Remove from the oven, transfer to a serving dish, and sprinkle with chopped fresh parsley. Serve warm.