Shake Shack Jamsil is a fast-food restaurant selling burgers, shakes and fries, located on the first floor of Lotte Castle Plaza connected to Jamsil Station, near the entrance of Lotte World Mall. The ShackBurger has a charcoal-grilled aroma, the shakes are sweet, and fries and concrete ice cream are also served. Orders are placed at a kiosk, and there is a hand-washing machine inside the store. On weekends it is hard to find a seat, and the ordering kiosks may stop working or wait times may get long.