Begin by grating the carrot and cucumber until finely shredded, using a box grater or food processor. Place into a large mixing bowl.

Using a fork or your hands, gently shred the imitation crab sticks into thin strands and add to the bowl with the carrot and cucumber.

In a separate mixing bowl, combine lemon juice, mayonnaise, salt, black pepper, and sriracha. Whisk until smooth and creamy.

Pour the dressing over the salad mixture and gently toss everything together until evenly coated.

Sprinkle sesame seeds over the salad, and add cilantro or green onions and lemon slices for garnish.

Let the salad rest in the refrigerator for 30 to 60 minutes for the flavors to meld before serving.