Boil the eggs hard-boiled, let them cool down and very carefully (!) cut into two halves.
Remove the yolks from the egg halves and put them in a separate bowl.
Finely chop the ham and green onions. Grate the cheese on a coarse grater. Add them to the yolks. Add mayonnaise and mix everything together. Spread the filling on half an egg with a spoon and garnish with herbs!
You can add salt and garlic to taste.