Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Peel the carrots and slice them into 1/2-inch thick rounds; cut the chicken breast into bite-sized 1-inch cubes.
In a large mixing bowl, whisk together the maple syrup, olive oil, sea salt, black pepper, garlic powder, and dried thyme.
Add the sliced carrots and chicken pieces to the bowl, tossing thoroughly until every piece is evenly coated in the glaze.
Spread the mixture onto the prepared baking sheet in a single layer, ensuring the pieces aren't overcrowded so they roast rather than steam.
Roast for 20 to 25 minutes, tossing halfway through, until the chicken is cooked through and the carrots are tender with caramelized edges.
Remove from the oven and let rest for 2 minutes before serving to allow the glaze to thicken slightly.