What are the components of a green smoothie at Denny's?

The correct answer focuses on the specific ingredients that are commonly used in a green smoothie at Denny's. The combination of mango, vanilla, banana, and spinach creates a balanced flavor and texture. Mango provides a sweet, fruity base that pairs well with the creamy texture of vanilla, while the banana adds both sweetness and thickness. Spinach is included to give the smoothie its "green" aspect, adding nutritional benefits without overpowering the taste. This combination not only aligns with flavor preferences but also meets health and dietary trends, making it an appealing choice for customers looking for a nutritious option.

In evaluating the other options, it's clear they contain different ingredient combinations that do not match Denny's standard green smoothie recipe. The other mixes may feature ingredients like avocado or different ratios of fruit, which, while potentially nutritious, do not represent the established recipe offered at Denny's.