Start by hard-boiling the eggs. Place the eggs in a pot and cover them with water. Bring the water to a boil, then cover the pot and remove it from heat. Let the eggs sit for about 10-12 minutes. Once done, transfer them to an ice bath to cool before peeling.
In a medium-sized mixing bowl, add the peeled hard-boiled eggs. Use a fork to mash them to your desired consistency. Some prefer it chunky, while others like it smoother.
Next, add the plain Greek yogurt and Dijon mustard to the mashed eggs. Stir until everything is well combined.
Add the finely chopped celery and chives to the mixture. Mix well to ensure the veggies are evenly distributed.
Sprinkle in the salt and black pepper. Taste your Healthy Egg Salad and adjust the seasoning as needed.
For the best flavor, let your egg salad chill in the refrigerator for at least 30 minutes before serving.