1. Remove yolk from egg whites using teaspoon. Press yolks through sieve with back of spoon or mash with fork in medium bowl. Stir in mayonnaise, mustard, salt and pepper; mix well.
2. Spoon or pipe yolk mixture into egg whites. Arrange on serving platter. Garnish as desired. Cover; chill in refrigerator until ready to serve.
Zesty Variations
Stir in one of the following: 2 tablespoons minced red onion plus 1 tablespoon horseradish, 2 tablespoons pickle relish plus 1 tablespoon minced fresh dill, 2 tablespoons each minced onion and celery plus 1 tablespoon minced fresh dill, 1/4 cup (1 ounce) shredded Cheddar cheese plus 1/2 teaspoon French's® Worcestershire Sauce.