In the bowl with the yolks, add the mayonnaise, Dijon mustard, onion powder, garlic powder, paprika, salt, and pepper. Add the green onion, celery, and dill, and mix everything together until you have a smooth and creamy mixture.
The egg salad can be served immediately, but it also gets even better if you let it chill in the fridge for an hour or so to let the flavors meld together. It's delicious served on top of a bed of lettuce, as a sandwich filling, or with crackers as a snack.