Ingredients

1/2 teaspoon finely grated lemon zest

2 tablespoons fresh lemon juice

1 tablespoon white-wine vinegar

2 teaspoons Dijon mustard

3 tablespoons olive oil

Coarse salt and ground pepper

1 pound mesclun

Preparation

In a large bowl, whisk together lemon zest and juice, vinegar, mustard, and oil until combined and thickened; season with salt and pepper. Add mesclun; toss to coat. Season again with salt and pepper.