Mash eggs in a bowl. Add relish, celery and bell peppers.
6 hard boiled eggs, 2 Tablespoons pickle relish, 1 stalk celery, ¼ cup red bell pepper
Mix all dressing ingredients in a bowl. Stir until well combined.
½ cup mayonnaise, 1 Tablespoon milk, ½ teaspoon Dijon mustard, ½ teaspoon yellow mustard, ½ teaspoon creamy horseradish sauce, 1 teaspoon white wine vinegar, ¼ teaspoon salt, ¼ teaspoon black pepper