Peel the boiled eggs and separate yolk and egg whites.
Put yolks in a bowl and mashed it.
Chop the egg whites into small cubes, add to the yolks.
Add chopped onion and parsley flakes, lightly season with salt and pepper.
Add kewpie mayonnaise and grated cheese. Mix well. Taste to adjust seasoning.
Spread on top of your toast, stuff it in beween slices of bread or use as a dip for your veggies.
Keep the excess in the fridge and use next day or two.