Begin by gently wiping the mushrooms with a damp cloth to remove any dirt. Avoid soaking them, as mushrooms are like sponges and can become waterlogged.

Melt generous amounts of butter and olive oil in a skillet over medium heat. Add the chopped onions and minced garlic, and cook them until they are aromatic and just beginning to turn translucent.

Toss in the cleaned mushrooms and let them cook until they turn golden brown. This step allows the mushrooms to absorb the flavors of the garlic and onions.

Sprinkle your chosen herbs and spices, as well as a pinch of red pepper flakes, over the mushrooms. Stir well to ensure even distribution.