01 - Preheat oven to 425°F and line a large baking sheet with parchment paper.
02 - Place sweet potato rounds in a single layer on the prepared baking sheet.
03 - Drizzle olive oil over the sweet potatoes and season with sea salt, black pepper, and cinnamon if using. Toss until evenly coated, then spread back into a single layer.
04 - Roast for 25 to 30 minutes, flipping halfway through, until the edges are golden and the centers are fork-tender.
05 - Remove from the oven and immediately drizzle honey evenly over the warm medallions. Allow to rest for 2 to 3 minutes so the honey absorbs into the potatoes.
06 - Transfer to a serving platter, garnish with chopped fresh parsley if desired, and serve warm.