O Mandarin is a trendy upscale Asian-owned restaurant located in Hicksville, NY, offering a variety of authentic Chinese dishes. Customers rave about the Peking Duck, with a crunchy skin and perfectly trimmed fat. The dim sum options like the Beijing ZhaJiangMein with pork belly and the Dan Dan Noodles with ground beef are also highly recommended. Appetizers like the Century Egg & Soft Tofu and the Chengdu Mouthwatering Chicken are flavorful and well-executed. The Emperor Grilled Lamb is a standout dish, surpassing other local options. The ambiance is classy and intimate, with attentive service. While prices may be on the higher side, the quality of the food and dining experience justify the cost. Overall, O Mandarin is a must-visit for Chinese cuisine enthusiasts looking for a top-notch dining experience.