Tangy Summer Salad - The One Box

Ingredients

• 1 medium cos lettuce, leaves stripped and washed
• 1 large carrot, peeled and grated
• 1 large apple, grated
• 1 mandarin, peeled and segments halved (seeds removed)
• 1 small cucumber, diced
• Handful walnuts, toasted
• 1 teaspoon Dijon mustard
• 2 tablespoons mayonnaise or natural yogurt
• 1 tablespoon milk
• 1 tablespoon red wine vinegar
• 1/2 teaspoon salt
• 1/2 teaspoon brown or caster sugar
• Black pepper to taste