Wash beans and remove ends. Sprinkle with salt. Arrange beans in a steamer basket and place over boiling water. Cover and steam approximately 10 minutes or until crisp-tender. Plunge green beans into cold water to stop cooking process; drain and set aside.
In a large skillet, heat olive oil over medium heat. Add green onions and cook, stirring constantly, about 3 minutes. Add green beans, pecans, rosemary and lemon juice; cook, stirring constantly until mixture is thoroughly heated. Sprinkle with lemon rind and garnish if desired. Serve immediately.