Ingredients

2 teaspoons Dijon mustard

1 tablespoon red-wine vinegar

1 tablespoon olive oil

Coarse salt and ground pepper

Reserved romaine leaves from Romaine-Heart Salad, washed, dried well, and chopped

Croutons

Preparation

In a large bowl, whisk together mustard, vinegar, and oil; season with salt and pepper. Add lettuce, and toss to combine. Sprinkle with croutons. Serve immediately.