Romaine, Red Onion & Orange Salad

Ingredients

• 1 small red onion, thinly sliced
• 2 navel oranges
• 1/3 cup orange juice
• 2 tablespoons extra-virgin olive oil
• 2 teaspoons Dijon mustard
• 1 small clove garlic, minced
• Pinch of sugar
• Salt & freshly ground pepper to taste
• 4 cups washed, dried and torn romaine lettuce or escarole