Answer: I ordered many things at the restaurant: a salad, chicken pesto, and tiramisu.
Explanation:
A colon is a punctuation mark that has two parallel dots and it is used when people are trying to tell the readers what they meant. In this case, the writer is telling us that he ordered many things in the restaurany, and after the colon : he wrote on what things he was thinking, those are chicken pesto, a salad, and tiramisu.
The colon is used to introduce the items to readers. That can be a series of items or something similar.
