Preheat the oven to 400°F (200°C).
- Wash and slice sweet potatoes into ½-inch thick rounds, leaving the skin on.
- Place the rounds on a baking sheet lined with parchment paper.
- Drizzle with olive oil and season with salt and black pepper.
- Roast for 20–25 minutes, flipping halfway through, until tender and lightly browned.
- Remove from oven and allow to cool slightly.
- Top each round with a generous sprinkle of blue cheese.
- Optional: Return to oven for 2–3 minutes to melt the cheese slightly.
- Garnish with fresh thyme or rosemary, and drizzle with honey or balsamic glaze if desired.
- Serve warm or at room temperature.