Chop the onion, squeeze out the lemon juice, add soy sauce, oregano. Leave to marinate in a separate bowl.
Chop the remaining ingredients: tomatoes, bell pepper, avocado, cheese, parsley. Tear the lettuce leaves into pieces. Transfer the pickled onion to a salad bowl. The salad is seasoned with sunflower oil. To interfere. Sprinkle with sesame seeds.