Clean mushrooms if needed with a towel and chop them as you like.
Put them in a pan with some water (just enough as to create a bed of water), bring to boil, and cook for a few minutes.
The liquid in the pan will soon turn brown, an indication that some of the mushroom’s abundant water had come out.
Continue cooking until water evaporates completely.
Add a bit of olive oil and seasoning, stir for a couple of minutes in high heat.
Serve and eat them as such, or proceed by incorporating them in a sauce.