Prepare the Dressing:
In a medium-sized mixing bowl, combine the mayonnaise, white vinegar, chopped parsley, lemon juice, and sliced green onions. Season the mixture with kosher salt and freshly cracked black pepper to taste. Stir the ingredients together until well blended.
Incorporate the Crab Meat:
Gently fold the cut pieces of imitation crab meat into the dressing mixture. Ensure that the crab meat is evenly coated with the dressing without breaking apart the pieces.
Chill the Salad:
Cover the bowl tightly with plastic wrap and refrigerate for a minimum of 2 hours. This allows the flavors to meld together. The salad can be stored in the refrigerator for up to 5 days.
Prepare for Serving:
Prior to serving, slice the rolls and fill them with the crab salad. Garnish with additional sliced green onions to enhance the presentation. Serve immediately and enjoy.