Winter Salad

Ingredients

• 2 tablespoons raspberry or red wine vinegar
• 1 tablespoon fresh orange juice
• 1 tablespoon balsamic vinegar
• 2 teaspoons extra-virgin olive oil
• 1/2 teaspoon sugar
• 1/4 teaspoon black pepper
• 1/2 teaspoon low-sodium soy sauce
• 1/4 teaspoon Dijon mustard
• 1/8 teaspoon salt
• 8 cups mixed salad greens
• 1 cup grapefruit sections (about 1 large grapefruit)
• 1 cup thinly sliced red onion
• 1/4 cup coarsely chopped walnuts