WASHINGTON: John Howie Steak's 60/40 Prime Juicy Lucy Burger has a whole lot of goodness going on. The burger is made of ground prime chuck and Kurobuta bacon, and comes stacked with sharp New York cheddar and Monterey Jack cheeses, caramelized onions, mayo, lettuce, and tomato. The whole thing is sandwiched between a sweet, house-baked bun.