Chef Keller prepares a scrumptious dinner starting with a refreshing and healthy asparagus salad. For the main course, he uses a delicious cut of beef, slow braised in beer accompanied by mac and cheese that's brought to a whole new level of goodness. Raw Asparagus, Radish, and Shiitake Mushroom Salad; Braised Flat Iron Steak and Wild Mushroom Mac & Cheese.