Preheat oven to 425°F (220°C). Line a large baking sheet with parchment paper.
Peel the sweet potatoes and cut into 2cm cubes.
Toss the cubes with olive oil, minced garlic, salt, and pepper in a large bowl until evenly coated.
Spread in a single layer on the baking sheet. Make sure pieces are not touching for best caramelization.
Roast for 25-30 minutes, flipping halfway through, until tender and caramelized at the edges.
Scatter fresh parsley over top and serve as a side dish.
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