Boil eggs for about 10 minutes. Then rinse in cold water and let cool down.
Clean, wash and cut the lettuce into strips. Cut the cucumber into thin slices. Cut the cheese and ham into narrow pieces or also into strips. Mix the mayonnaise with the sour cream and ketchup. Season to taste with salt, pepper and sugar.
Peel the eggs and cut into wedges. Mix all the salad ingredients and serve with the sauce.