Preheat the oven to 425 degrees F with the rack in the middle position.
Place your carrots in a single layer on a parchment-lined baking sheet.
Drizzle the olive oil on the carrots and sprinkle the salt on them.
Roast in the oven for 30 minutes or until the carrots are tender.
Meanwhile, make the sauce: combine all the ingredients in a small food processor or blender and puree until smooth.
Taste for seasoning and add more salt as necessary.
Spoon the ginger-sesame sauce over the carrots and top with the sesame seeds.