Rub a top sirloin or T-bone steak with Worcestershire sauce and black pepper and allow it to sit for about 15 minutes.
Meanwhile, roughly cut green peppers, onions and whole mushrooms. Sauté in butter, keeping them slightly crisp. Season with cracked black pepper and seasoned salt.
Grill steak to the desired degree of doneness. Cover steak with the sautéed vegetables. Serve with baked potatoes.
