Raw Waldorf Salad

Name: Raw Waldorf Salad
Ingredients: * 1 cup celery (3-4 stalk), chopped; * 1 cup apple, chopped; * 1 cup grape, halved; * 1 cup carrot, grated; * 1/2 cup walnut, optional; * large handful of lettuce leaf; for the mayonnaise; * 1 ripe avocado; * 1/4 teaspoon spirulina powder; * 1 tablespoon olive oil; * handful of basil leaf