Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Peel the carrots and slice them into 1/2-inch thick diagonal coins, and cut the chicken breast into bite-sized 1-inch cubes.
In a large mixing bowl, whisk together the olive oil, honey, sea salt, black pepper, and fresh thyme leaves.
Add the carrots and chicken to the bowl and toss thoroughly until every piece is evenly coated in the honey mixture.
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 the ingredients halfway through, until the chicken is cooked through and the carrots are tender with golden, caramelized edges.
Remove from the oven and let rest for 2 minutes before serving to allow the glaze to thicken slightly.