In a large mixing bowl, combine the fresh crab meat, diced cucumber, cherry tomatoes, shredded carrots, and red bell pepper.
In a separate small bowl, whisk together mayonnaise, lemon juice, and Dijon mustard until smooth.
Pour the dressing over the crab mixture and gently toss to combine.
Season with salt and pepper to taste.
Chill the salad in the refrigerator for about 10 minutes.
Prepare a serving platter with a bed of mixed greens.
Remove the salad from the refrigerator.
Mound the crab salad on top of the mixed greens.
Garnish with fresh parsley for a pop of color.
Serve immediately and enjoy this refreshing dish!