Grass-Fed Steak au Poivre with Yucca Mash

Ingredients: Grass-fed Flat Iron Steak, Yucca, Button Mushrooms, Organic Grass-fed Butter, Beef Broth, Cognac, Shallots, Fresh Garlic, Cream (Milk), Sea Salt, Black Pepper, Granulated Garlic, Granulated Onion