Preheat oven to 475°F. Cut green carrot tops from carrots. Remove thick stems and reserve small, fine carrot top leaves. Set aside. Add whole carrots to a large baking tray. Drizzle with oil and sprinkle with first amounts of sea salt and pepper.
Roast carrots for 15 minutes, remove from the oven, stir carrots, and roast for another 15 minutes. Remove tray from oven. Carefully pour vegetable broth into tray and return to the oven. Roast carrots for an additional 10-15 minutes, or until broth is evaporated and carrots are tender.
Prepare carrot top pesto: combine reserved carrot top leaves, garlic, pine nuts, basil leaves, parmesan cheese, olive oil, lemon juice, red pepper flakes, and second amounts of sea salt, and pepper in a food processor. Pulse until evenly combined. If the pesto is too thick, drizzle in more olive oil. Add roasted carrots to a platter and drizzle pesto on top. Enjoy!
This nutritional information refers to each serving of the entire recipe and not just the products used as ingredients.