For a deeper smoky flavor, consider using smoked paprika in addition to or in place of some of the chipotle powder. To ensure even cooking, slice the sweet potatoes and carrots to a uniform thickness. Feel free to experiment with other vegetables such as zucchini, yellow squash, or red onion. Adjust cooking times accordingly. A drizzle of olive oil before roasting can enhance the flavor and texture of the vegetables. Garnish with a squeeze of fresh lime juice just before serving for a bright, zesty finish.