Preheat the oven to 400 degrees F, with one oven rack positioned in the center position and one rack in the bottom position. Lightly coat a large baking sheet with cooking spray.
Cut the peeled sweet potatoes and carrots into ¾- to 1-inch pieces. Transfer to a bowl. Add the olive oil, maple syrup, salt, thyme, rosemary and nutmeg. Toss to coat thoroughly.
Transfer the vegetables to the prepared baking sheet and arrange them in a single layer. Take care not to crowd them.
Place the baking sheet on the center rack of the oven. Roast the vegetables for 20 minutes. Gently stir the vegetables, then re-arrange in a single layer.
Return the baking sheet to the oven, on the bottom rack. Roast until the vegetables are tender when pierced with a fork and browning on the underside, about 10 to 12 minutes.
Notes
Please note that I am not a medical or nutritional professional. I provide nutritional information for my recipes as a courtesy to my readers. It is calculated using the LoseIt! calculator. While I attempt to provide information that is as accurate as possible, you should calculate the nutritional information independently before relying on it.