Flour the chicken breast well, remove the excess flour.
In a large frying pan, put the extra-virgin olive oil, the garlic clove and when it is lukewarm add the champignon mushrooms, cook for a few minutes, remove the garlic clove and place the chicken breast, brown on both sides, blend with white wine and when it is low, lower the heat and cook.
If you see that the sauce that has formed is too dry add a little warm water.
Turn off the gas, sprinkle over the chicken breast slices of the minced parsley.