Set the eggs to hard boil. I put the eggs in a small pan of water, bring to a boil. Turn off the stove, but leave the pan on the burner and cover. Let sit for 18 minutes. When the timer goes off, drain the hot water, and run cold water over the eggs. Let cool, then dice the eggs.
While the eggs are getting hard boiled, get everything else ready. Finely chop the olives. I use the queen sized green pimento stuffed olives. Cube the pickle. I used 2 petite dill pickles, or probably half (or maybe less) of a regular sized pickle.
Add the ground mustard, salt and pepper to taste. Add enough mayonnaise to your desired consistency.