Cut the onion into half rings and marinate for 20 minutes. for the marinade: in 100 ml of cold boiled water, add vinegar and sugar, mix and put the onion there.
In a salad bowl, cut the bell pepper into thin strips, celery into small cubes.
Cut the meat into thin strips and add to the salad. Add spices and vegetable oil. Remove the onion from the marinade and add it to the salad. Mix it. Place the randomly chopped lettuce leaves on a plate, on top of the salad. Peel the egg and cut it into thin slices, put it in a salad circle. Garnish with parsley.