Peel and rinse eggs and pat dry. Chop into small pieces and place in the large bowl.
Add in mayo, mustard, salt, pepper, and green onion.
Stir and refrigerate for at least 2 hours.
Top with bacon and chives if desired.
Notes
** or to taste. I use Real Salt, but if using table salt it may be less. This can also vary depending on type of mayo you use. Taste once it's mixed and add more if needed.