Is it chilis or chilies?
The plural of chili is chilies. Chili is the most common spelling in American English for the spicy small peppers of the capsicum family. It is also spelled chile (plural chiles) in some areas of the US, and in British English the correct spelling is chilli (plural chillies).
The QuillBot Grammar Checker has selectable language regions to help make sure you always have the correct spelling of chilies or chillies.