Which of these items does NOT have any allergens listed for pre-service?

The Cajun chicken Caesar is the correct choice because it does not have allergens listed for pre-service, making it a safe option for guests with known allergies. Typically, menu items that are straightforward in their ingredients or have been designed to exclude common allergens may not have allergen warnings.

In contrast, items like the Pesto chicken quesadilla, chicken tenders, and cheddar bacon burger might contain ingredients that are common allergens such as gluten (in breading or tortillas), dairy (in cheeses or sauces), or nuts (in pestos). These items often include allergen warnings to protect guests who may have sensitivities or allergies, highlighting the necessity for clear communication regarding potential allergens in menu offerings.

Thus, identifying the Cajun chicken Caesar as the item without allergens indicates careful menu planning to accommodate guests with dietary restrictions.