Wash the carrots thoroughly under running water and peel them. Trim the ends and check that the carrots are firm and fresh. Fresh carrots provide the best sweetness, color, and crunch.
Use a box grater or food processor to grate the carrots into fine or medium shreds. Fine shreds absorb the dressing more quickly, while slightly thicker shreds provide extra crunch. Place the grated carrots in a large mixing bowl.
In a small bowl, whisk together the olive oil, lemon juice, Dijon mustard, honey if using, salt, and black pepper. Continue whisking until the dressing is well combined and slightly emulsified.
Pour the dressing over the grated carrots. Toss thoroughly with two forks or salad servers until the carrot shreds are evenly coated. Make sure the dressing reaches the carrots at the bottom of the bowl.
Sprinkle the chopped parsley and optional chives over the salad. Toss again gently to distribute the herbs throughout the carrots.
Allow the salad to rest for about 10 minutes before serving. This short resting period helps the carrots absorb the lemon dressing while retaining their fresh texture. You can skip this step if you prefer an especially crunchy salad.
Taste the salad and adjust the seasoning as needed. Add a little more lemon juice for extra tanginess, a small drizzle of olive oil for richness, or a pinch of salt to bring the flavors together.
Transfer the salad to a serving bowl or individual plates. Garnish with additional parsley, lemon zest, or toasted sunflower seeds if desired. Serve fresh alongside sandwiches, quiche, roasted vegetables, or your favorite main course.