Trim the carrots. If they are large, cut them in half lengthwise, otherwise, leave them whole. Place on a rimmed baking sheet.
Combine olive oil, maple syrup, lemon juice, salt, black pepper and garlic powder in a small bowl. Drizzle over the carrots, toss to coat. Arrange the carrots in an even layer. Transfer to the oven. Roast for 15 minutes.
Meanwhile, chop the walnuts. Combine all of the ingredients for the mustard miso dressing in a bowl.
Flip the carrots, add the walnuts and roast until the carrots are tender and the edges are charred and crispy, about 10 to 15 minutes more.
Once the carrots are ready, drizzle with mustard miso dressing and transfer to a platter. Serve!
Calories Per Serving: 386 kcal Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.