Final answer:
Upselling the super spinach and quinoa salad may involve adding premium ingredients or suggesting a combo that includes a drink or dessert to increase customer satisfaction.
Step-by-step explanation:
The upsell to the super spinach and quinoa salad typically refers to the practice of encouraging customers to purchase additional items or more expensive versions of the product for an enhanced experience. In the context of a salad, an upsell could include options such as adding premium ingredients like grilled chicken, shrimp, avocado, or a special dressing that complements the existing flavors of the spinach and quinoa. Upselling can also involve recommending a combo deal that includes a drink or a healthy dessert, thereby increasing the overall value and satisfaction for the customer.