Endive Watercress Salad

Ingredients

• 10 cups watercress
• 4 cups thinly sliced Belgian endive
• 3 medium navel oranges, peeled and sliced
• 1 medium cucumber, halved and thinly sliced
• 10 slices red onion, separated into rings
• DRESSING:
• 2/3 cup canola oil
• 1/4 cup lemon juice
• 1/4 cup rice vinegar
• 1/4 cup olive oil
• 4 teaspoons Dijon mustard
• 2 teaspoons ground ginger
• 1-1/2 teaspoons sugar
• 1/2 teaspoon salt
• 1/4 teaspoon pepper