Preheat the oven to 400°F.
Stem and peel the carrots then cut them on the bias (diagonally) into 2-inch long pieces that are about 1/2-inch thick.
Add the carrots to a large bowl.
In a separate small bowl, whisk together the olive oil and honey with 1/2 teaspoon kosher salt and 1/4 teaspoon black pepper. Pour the mixture over the carrots and toss well to combine.
Arrange the carrots in a single layer on a nonstick baking sheet. (Alternately, line a baking sheet with foil for easier cleanup then arrange the carrots on top.)
Roast the carrots for 20 minutes then toss them and continue roasting until softened and slightly caramelized, an additional 15 minutes.
Remove the carrots from the oven and transfer them to a serving platter. Top with crushed pistachios and serve.