Veggie Egg Salad

Ingredients:3 tablespoons nonfat plain yogurt3 tablespoons reduced-fat mayonnaise1/4 teaspoon freshly ground pepper1/8 teaspoon salt8 hard-boiled eggs (see tip)1/2 cup finely chopped carrot1/2 cup chopped cucumber, peeled and seeded if desired1/4 cup sliced scallions