Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
Cut the chicken breast into 1-inch bite-sized pieces and peel the carrots, slicing them into 1/2-inch thick rounds.
In a large mixing bowl, whisk together the olive oil, maple syrup, ground cinnamon, sea salt, and black pepper.
Add the chicken pieces and sliced carrots to the bowl, tossing thoroughly to ensure every piece is evenly coated in the glaze.
Spread the mixture in a single layer on the prepared baking sheet, making sure the chicken and carrots are not overcrowded to allow for proper browning.
Roast for 20 to 25 minutes, flipping the ingredients halfway through, until the chicken is cooked through and the carrots are tender and caramelized.
Remove from the oven and garnish with fresh thyme leaves before serving immediately.