Increased global competition in the agricultural sector is rapidly changing the structure of farms and farming. As the number of small and diversified farms (often family-owned) decreases, the number of large and specialized farms (often corporate-owned) is increasing. In this transformation, the agricultural sector is more and more concerned with strategy, innovation, and competition in the effort to be more productive and more profitable. At the same time, the sector faces demands that it become more environmentally responsible in its policies and practices. This paper proposes a Lean Implementation Framework that small and mid-size farms can use as they aim to increase production and profit and yet support environmental sustainability. This case study takes an action-oriented research approach that focuses on the implementation of a Green Lean approach at 34 Swedish farms using various Lean tools. The paper describes how training sessions, farm visits, workshops, and counseling were used to introduce the farmers to the benefits and risks of the implementation of a new business model that added Green elements to the traditional business model design. The paper concludes with recommendations for adaptations to the Framework and suggestions for future research. © 2018