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 rounds, then cut the chicken breast into 1-inch bite-sized pieces.
In a large mixing bowl, whisk together the extra virgin olive oil, maple syrup, sea salt, black pepper, and garlic powder until well combined.
Add the chicken pieces and sliced carrots to the bowl, tossing thoroughly to ensure every piece is evenly coated in the maple glaze.
Spread the mixture in a single layer on the prepared baking sheet, making sure not to crowd the pieces so they roast rather than steam.
Roast in the center of the oven for 22 to 25 minutes, or until the chicken is cooked through and the carrots are tender and caramelized.
During the last 5 minutes of roasting, sprinkle the chopped pecans over the tray to lightly toast them and enhance their nutty flavor.
Remove from the oven and garnish with freshly chopped parsley before serving warm.