Bring a saucepan of salted water to a boil. Add the haricots verts and cook until crisp-tender, 3 to 5 minutes. Drain and run under cold water to stop the cooking.

Puree the yogurt, mayonnaise, lemon juice, chives, basil and anchovies in a blender until smooth. Season with salt and pepper.

Toss the crabmeat, half of the avocado and about 1 tablespoon of the yogurt dressing in a small bowl. Toss the romaine, croutons, haricots verts and the remaining avocado with the remaining dressing in a large bowl.

Divide the romaine salad among plates, top with the tomatoes and place some of the crab mixture in the center.

Per serving: Calories 314; Fat 14 g (Saturated 2 g); Cholesterol 73 mg; Sodium 552 mg; Carbohydrate 28 g; Fiber 8 g; Protein 22 g

Photograph by Antonis Achilleos