One of the joys of living in South Florida is the daily encounters with interesting brain exercises. This sign was in the cafeteria of my sons school.

One of the joys of living in South Florida is the daily encounters with interesting brain exercises. This sign was in the cafeteria of my sons school.

What part of this don´t you understand. Its pretty clear if you read each line correctly punctuated.
You make substitute.
A cold sandwich for:
Hot Lunch!
Turkey Sub, Ham &;
Chese Sub, or pbj ?