First cut the iceberg lettuce into fine strips (or pieces) and then wash well with the cucumber and tomatoes and drain.
Then mix the mustard with the vinegar and oil well until a thick mixture is formed. Then mix the whole thing with salt, pepper, sugar and the herbs and season to taste. Then cut the feta and cucumber into small cubes and halve the tomatoes. Add. Finally add the iceberg lettuce and spread the chicken strips on top. If you like, you can sprinkle croutons on top.