Citrus and Greens with Orange-Ginger Dressing

Section oranges and grapefruit; peel and cut pineapple into chunks.

Melt marmalade in a small saucepan over low heat, stirring constantly; remove from heat, and stir in vinegar and ginger.

Arrange salad greens evenly on individual serving plates; top with fruit, and drizzle with marmalade mixture.