Boil the eggs about 7 minutes after the water starts boiling.
Meanwhile, take a medium bowl and add the canned tuna, chopped pickles, onion and mayo, Dijon mustard, canned corn and greenies. Mix well to homogenise the mixture. Add seasoning after taste.
Take the eggs off the boiling water, and under the cold water, leave them for 2 minutes. Peel off the eggs and, with the help of a fork, smash them. Add the eggs to the mixture and mix all the ingredients.
Set aside.
Optional: grill the bread slices in the air fryer for 2 minutes.
Take one slice of the tuna mixture, cover the sandwich with another slice of bread, and enjoy a moment of satisfaction and pleasure.