If you want to eat in Jinonice cafeteria, you always need to order your meal at least one (working) day in advance. To be able to use online ordering meal service, you are expected to charge your CU card at the cash desk (on the ground floor). Each meal will then be charged from the cash you have deposited. You may also use your credit to pay for other food at the buffet (small snacks, pastry, coffee etc.)
On this website, you can choose and order your meals in advance.