Final answer:
The query about the Willys Delight Catfish Sandwich cannot be addressed as it does not match any known recipe or menu item. The explanation provided for a ham sandwich illustrates how a sandwich's composition can be described using an equation format including various ingredients such as ham, cheese, tomato, pickles, and bread.
Step-by-step explanation:
The original question about the ingredients of the Willys Delight Catfish Sandwich does not correspond to any known topic or menu item from a widespread establishment. However, using the provided information, an analogous explanation for a ham sandwich can be given which could serve as a template to recognize the structure of sandwich descriptions.
According to the information given, a ham sandwich can be described by the equation: 2H + C + T + 5P + 2B. This denotes the sandwich is composed of 2 slices of ham, 1 slice of cheese, 1 slice of tomato, 5 pickles, and 2 slices of bread. If we apply a similar structure to the unknown Catfish Sandwich, it might include specific ingredients such as catfish and various toppings listed in a similar equation format.