Boil the shrimps in salted water with the addition of spices for 5-7 minutes.
Wash the mushrooms, dry and cut into slices.
Fry the mushrooms in vegetable oil.
Allow to cool.
Cut the onion into thin rings, if small, then into rings.
Dry the cucumbers and cut into thin slices.
Peel the cooled shrimp.
Peel the apples, remove the seed pods and cut into thin slices. Sprinkle with lemon juice to avoid darkening.
Cut the olives in half.
For the sauce, combine mayonnaise, mustard and lemon juice, mix well.
Put all the components of the salad in a bowl, pour out the dressing and mix well.
Put lettuce leaves on a dish, gently put the salad on them. Decorate with parsley leaves.
Like this.