How about Printing Receipts with Thermal Printer !!!
Food Store is an extension to WooCommerce, that means we have used complete WooCommerce functionalities to prepare a page that your restaurant can use. And we have not compromised any WooCommerce functionalities in the process.
You still can use WooCommerce to sell your other items as usual. So that being said, you can choose any Print plugins that gives you printing capability of WooCommerce Orders.