Clean the mushrooms. If you have to, chop mixed mushrooms to almost the same size (especially for big ones).
Heat up half of the olive oil (about 1 & ½ tbsp) in a large pan. Keep the heat to medium-high.
Add mixed mushrooms and let cook for 2 to 3 minutes, mixing to make sure that each mushroom does not get stuck. You will notice the mushrooms shrinking a bit.
Add salt and pepper, chili flakes, garlic and rest of the olive oil. Mix for 2 minutes.
Add thyme. Mix.
Pour white wine and let evaporate.
Taste and adjust seasoning by adding salt, pepper or chili flakes.
Mix and continue letting wine evaporate. You will notice that the sauce will darken and thicken a bit by the time the mushrooms are ready.