Fry the chicken breast in butter for 4-5 minutes on each side, season with salt and pepper.
Halve the avocados, peel and remove the stone. Cut the flesh crosswise into slices. Halve the peeled onions and cut into fine wedges. Wash the pear, remove the core and cut into wedges. Wash lettuce and rightly pick it.
Distribute all ingredients on a plate. Cut the chicken breast into slices and arrange on top of the salad. Mix the mustard, honey, vinegar essence, 4-5 tablespoons of water, oil, salt and pepper into a marinade and spread over the salad.