need help to add options to food

you are probably looking for the “add ingredients” extension available here https://www.wp-pizza.com

what i want to do is (when visitor click on item it will give him some options to choose)

yup, the answer is still the same

now how can i add my catagory into that to apply same action on all products

Hi,
you need to be more specific. What exactly is it you want to do ?

oh, and if your question is related to the add ingredients extension, it shouldn’t be asked here (as per wordpress forum rules, this forum is only for the main free wppizza plugin)
so if that is the case, either send an email to dev[at]wppizza-com, or use the contact form provided here https://www.wp-pizza.com/contact-us/