Preheat the oven to 375 degrees
Slice carrots into rounds and toss with olive oil, salt, black pepper, thyme and rosemary. Line a baking sheet with parchment paper or aluminum foil.
Spread on baking sheet in a single layer. Roast carrots for 30 minutes, turning once halfway through. Remove from oven.
Preheat broiler to high. Broil carrots for three minutes or until lightly charred.