Ohkajhu Siam Square One is a restaurant in Siam Square One, Bangkok, serving salads, steaks, and Thai dishes built around organic vegetables. The salads come with crisp vegetables and a generous amount of thick dressing, and fish and chips, pasta, and pork ribs are ordered alongside them. A waiting number can be taken in advance through the QueQ app, and the store is attached to BTS Siam Station. Food can take more than 20 to 30 minutes to arrive.