mandarin-turkey salad

Ingredients

• 1/4 cup orange juice
• 1 1/2 tablespoons red wine vinegar
• 1 1/2 teaspoons poppy seeds
• 1 1/2 teaspoons olive oil
• 1/4 teaspoon dijon mustard
• 1/8 teaspoon salt
• 1/8 teaspoon pepper
• 4 1/2 cups torn romaine lettuce
• 1 1/2 cups torn radicchio or red leaf lettuce
• 1 1/2 cups cubed cooked turkey or chicken
• 1/4 cup vertically sliced red onion
• 1 can 11-oz mandarin oranges in light syrup, drained