Hi,
Edit the module with the id 863 (which is the module displaying your products on that page) via the menu Display>Content modules of HikaShop.
There, you can activate the option "link to the product page" and turn off the "display add to cart button" option so that you can access the products' product page from your listing and see the add to cart button only on the product page, not on the listing.
If you want a way to go back to the catering listing page and to the home page, I would recommend to enable the "breadcrumb" module of Joomla via the Joomla modules manager is a valid position of your template.