Ready for a true LA dining adventure? Grab your foodie friends and head to Father’s Office, where chef and owner Sang Yoon is waging a casual dining revolution. Be warned: casual means no reservations, no table service, no substitutions, and–gulp–no ketchup, but it’s all worth it. Arrive early and head straight to the bar, where a knowledgeable bartender will guide you through a selection of 36 craft beers on tap–just what you need to take the edge off the wait for a table. Before you know it, you’ll be seated in front of their signature Office Burger, a dry-aged beef patty topped with caramelized onion, Maytag blue cheese, melted Gruyere, applewood-smoked bacon, and arugula. Be generous and share an order of sweet potato fries, served with garlic parsley aoili, with your mates. Don’t worry, they’ll make more, and while they do, you can show off your knowledge of the restaurant’s one-of-a-kind, beer-purifying tap system, which is made from high-tech medical tubing originally designed for dialysis. The revolution is here, and your crew is invited.