Preheat your oven to 425°F (220°C). Gather your ingredients and prepare your baking sheet.

Rinse the radishes under cool water to remove any dirt. Trim the tops and tails, then slice them in half for even cooking.

In a mixing bowl, toss the halved radishes with minced garlic, olive oil, dried thyme, dried rosemary, salt, and black pepper until well coated.

Spread the seasoned radishes in a single layer cut-side down on a baking sheet, ensuring they're not overcrowded.

Roast the radishes for 20-25 minutes. Stir halfway through for even browning until golden brown and tender.

Remove the radishes from the oven and transfer to a serving dish. Sprinkle with fresh parsley and add lemon zest if desired.