Step 1

Melt the butter over medium high heat in a large skillet. Stir in the Worcestershire Sauce.  Add your mushrooms and cook until they start to turn golden brown; approximately 5 minutes. Stir about every 1 1/2 minutes. Add the onions and cook until the edges brown and the onions become translucent; approximately 5 minutes.  Continue stirring every 1 1/2 minutes

Step 2

In the final minute reduce the heat to low and add the minced garlic; stirring continuously.  Salt and pepper to taste.