01 - Preheat oven to 400°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss sweet potato cubes with olive oil, maple syrup, cinnamon, salt, and pepper until well coated.
03 - Spread sweet potatoes in a single layer on the prepared baking sheet.
04 - Roast for 25 minutes, then remove from the oven, toss gently, and sprinkle pecan halves evenly over the potatoes.
05 - Return to oven and roast for another 10–12 minutes, until sweet potatoes are caramelized and pecans are toasted.
06 - Transfer to a serving dish, sprinkle with chopped parsley if desired, and serve warm.