01 - Place eggs in a saucepan and cover with cold water by about an inch. Bring to a rolling boil over high heat, then immediately reduce to a gentle simmer. Cook for 10 minutes for hard-boiled eggs.
02 - Drain the hot water and transfer eggs to a bowl of ice water or run under cold running water for 2-3 minutes. Peel the cooled eggs and chop into 1/2-inch pieces.
03 - In a large mixing bowl, combine cottage cheese, Dijon mustard, lemon juice, salt, and black pepper. Whisk vigorously until the mixture reaches a smooth, creamy consistency.
04 - Add chopped eggs, diced celery, red onion, sliced chives, and parsley to the creamy base. Using a spatula, gently fold everything together until evenly distributed, maintaining some egg texture.
05 - Taste the salad and adjust salt or pepper as needed. Transfer to a serving bowl and sprinkle with smoked paprika if desired. Serve immediately on whole-grain toast, in lettuce cups, or chill for 30 minutes for enhanced flavor.