What is the standard sizing for a Chipotle serving?

The correct answer reflects the operational practices at Chipotle, where portions are determined based on established recipes and guides. This means that each menu item has specific portion sizes that are part of Chipotle's standardized recipes to ensure consistency across all locations. This allows for a predictable dining experience, maintaining the brand's commitment to quality and balance in flavors.

By following these guidelines, kitchen staff can efficiently serve customers while adhering to nutritional standards and managing food waste effectively. This system not only helps in maintaining food costs but also ensures that each customer receives the same amount of food, which is vital for customer satisfaction and operational efficiency.

In contrast, the other options suggest practices that are not in line with Chipotle’s standardized approach. For example, fixed portions regardless of item do not account for the variety of ingredients and preparations that might differ across the menu. Serving by weight could complicate the operations in a fast-casual environment where speed and efficiency are paramount. Similarly, determining portion sizes based solely on customer preference could lead to inconsistency and operational difficulties, undermining the brand's effort to deliver a reliable product.