Online order at knowlwoodrestaurants com. Delivery order at Postmates. Enjoy all day breakfast, burgers, salads, kids meals, and tacos in a National Historic Building or on heated outdoor patios. Order at the counter, then enjoy a milkshake or craft beer among a historic forge and drill press in an early 1900's classic American Western false front façade (staggered top on roof) blacksmith shop in Old Town Irvine, which helped run the surrounding Irvine Ranch farms. Home of the World's Best Hamburger Since 1957 in Orange County, California. Pay contactless with online ordering for take out or curbside pickup or delivery, or with QR code on dining receipt, or pay at register with contacting only your card.