This research project is purely focused on the operation efficiency-based productivity of a famous fast food company of New Zealand which faces lot of difficulties in its business for its lack of efficiency in consistent product quality. The aim of this study is to measure and understand the operational efficiency. For conduction of this research, the researcher has focused on consistent quality and productivity. For the research work the researcher has chosen the qualitative research (interview) method; for this, three employees, the operational manager and the marketing manager of the company were selected. Some discussions were also made for improvement of business. This study can also help to analyse various models such as the Just in time model, lean manufacturing model applications which leads to improvements in productivity as well as in operation efficiency. The importance and challenges of operational efficiency are also discussed for better understanding of operational efficiency. The qualitative primary method was chosen by the researcher to collect proper information from the sources. The research outcome was overall satisfactory. The Lean Manufacturing model is used to minimize waste and optimize resources. Additionally, manpower presence is also satisfied. Looking onwards, the researcher has made the recommendation that they implement some approaches including the information retrieval model and use the two bin system model for providing top notch service in the current competitive business environment. The study makes various suggestions for management including strategies to gain more operational efficiency.