Crack open your favorite brew.
Place cast iron pan on the grill to get rippin' hot (technical term). Sear steaks 2 min per side in the pan. Remove steaks from the pan and place on the grill to finish according to your preferred doneness.
Don't drain the pan. Add diced shallots and garlic for 30 seconds. Then add 8 oz chopped shitake and 8 oz baby portobello mushrooms. Saute. At very end, add dry red wine and allow to reduce.
Let steaks rest for 5-10 mins. Crack open more favorite brews. Enjoy.