Heat 2 tbsp of the butter in a large skillet over medium heat. Add the cubed steak in an even layer and heat for about 2-3 minutes. Season with salt and pepper. Flip the steak pieces over and cook an additional 1-2 minutes. Transfer the steak to a plate and set aside.
Add 2 more tbsp of butter to the skillet. Once heated, add the garlic and saute for about 30 seconds.
Add the mushrooms to the skillet, toss to combine. Cook over medium heat, stirring occasionally, for about 4-5 minutes or until the mushrooms are softened and browned.
Add the steak back to the skillet along with the Worcestershire sauce, 1 tbsp remaining butter, rosemary, and thyme. Toss and continue to cook for another minute. Serve!
Notes
Leftovers keep well in the fridge for up to 3 days. They also taste really good mixed with eggs or in an omelet.
Ribeye steak turns out much more tender than sirloin, but it is expensive so either steak cut can be used!
Starting with room temperature steaks is also a great way to make them more tender when cooked.