Cook the noodles according to package directions, drain.
While noodles are cooking, mix the mayonnaise, mustard, and crème fraîche together; slice the green onion; drain and flake the tuna; and slice the hard boiled eggs.
After the noodles have cooled a bit, add the mayo mixture and combine.
Add the tuna and onion then sprinkle some celery salt and dill on top (a light dusting to the surface area), and add a little pepper. Combine and add another dusting of the celery salt and dill. Combine again.
Add the sliced eggs and gently combine.
Chill in fridge for a few hours to let the flavors come together or eat immediately, both are great.
