Asparagus Topped with Creamy Tarragon Sauce

• 2 - bunches asparagus
• 1/2 - cup low-fat plain yogurt
• 6 - tablespoons reduced-fat mayonnaise
• 4 - teaspoons chopped fresh tarragon
• 1 - tablespoon lemon juice
• 1 - tablespoon water
• 2 - teaspoons Dijon mustard
• - Salt & freshly ground pepper

Bring 1 inch of water to a boil in a large saucepan. Put asparagus in a steamer basket, cover and steam until tender-crisp, about 4 minutes.

Meanwhile, whisk yogurt, mayonnaise, tarragon, lemon juice, water, mustard, salt and pepper in a small bowl. Drizzle the sauce over the asparagus. Serve warm or cold.