Truffle oil is the closest thing there is to an edible magic elixir. Toss it onto potatoes to give them a luxuriant sheen. Ta-da! Mix it with breadcrumbs to create a decadent crispy crust for steak. Abracadabra! It truly is a charm. Here, it takes this meat and potatoes recipe (with a side of tender roasted veggies) above, beyond, and into otherworldly territory.