Preheat the oven: Preheat oven to 425°F. Line a baking sheet with parchment paper.
Prep the sweet potatoes: Wash and dry the sweet potatoes. Slice each one in half lengthwise.
Season: Place the sweet potato halves on the baking sheet. Brush the cut sides with avocado oil. Sprinkle with garlic powder, black pepper, and sea salt.
Roast cut-side down: Place the sweet potatoes cut-side down on the baking sheet.
Bake: Roast for 30 to 40 minutes, or until the sweet potatoes are soft inside and caramelized on the bottom.
Serve: Flip carefully and serve warm with your favorite protein or toppings.