Which of the following is NOT listed as a side item?

The option that is not listed as a side item is "Spicy Pjk Bac curly." This item does not correspond to a standard menu side item offered by Jack in the Box. The other options, including 5 chicken nuggets, loaded tiny tacos, and 6 Mac n Cheese, are recognized as side items available on the menu. Side items typically include smaller portions or adjuncts to meals that complement the main offerings. In contrast, the "Spicy Pjk Bac curly" does not fit within the side item category, which is likely why it stands out as the option that is not a recognized side. Understanding the menu structure helps clarify why specific items are classified as sides while others may be main menu offerings or specialty items.