How do you create an option for use to press and then ask for another option? [closed]

Basically im using visual studio code for my website. I want the user to pick an option like cheese or ham. If they select cheese another menu shows up and saying mozzarella or red. I have the buttons ready for cheese or ham but dont know how to pop up other options for mozarella or red. They will be hidden until user picks only cheese.

I am using main.js and index.html to do this. Maybe styles will help as well?