01 - Preheat oven to 425°F (220°C) and line a large baking sheet with parchment paper.
02 - Place sweet potato medallions in a single layer on the prepared baking sheet.
03 - Drizzle sweet potatoes with olive oil, then sprinkle with sea salt, black pepper, and cinnamon if using. Toss to ensure even coating and redistribute into a single layer.
04 - Roast for 25 to 30 minutes, flipping medallions halfway through roasting, until golden and fork-tender.
05 - Remove from oven and immediately drizzle evenly with honey. Allow medallions to rest 2 to 3 minutes for honey to infuse.
06 - Transfer medallions to a serving platter. Garnish with fresh parsley if desired and serve warm.