Step 1

Melt the butter in a large pan over medium heat.

Step 2

Add the onions and cook for 6-8 minutes, until onions are soft and beginning to brown.

Step 3

Add the mushrooms, then season generously with salt and pepper.

Step 4

Cook, stirring occasionally, until mushrooms are golden brown and tender, about 7 more minutes.

Step 5

Stir in the garlic, Italian seasoning and Worcestershire sauce, then cook for an additional 30 seconds.

Step 6

Sprinkle with parsley and serve immediately.