Hard-Boil the Eggs: Place eggs in a pot and cover with water. Bring to a boil, then cover and remove from heat. Let sit for 12-14 minutes. Drain, cool in ice water, and peel.

Prepare the Filling: Slice the boiled eggs in half and remove the yolks. In a mixing bowl, mash the yolks with avocado, mayonnaise, mustard, dill, salt, and pepper until smooth.

Fill the Egg Whites: Spoon or pipe the avocado mixture back into the egg white halves.

Garnish: Top each filled egg with a small sprig of dill for a nice touch.

Serve: Arrange on a platter and enjoy!