There is a main cafeteria at "Kolej 17.listopadu" (Envelopa campus) and another in Neředín. University cafeterias are called “menza” and you can order meals (lunches and dinners) from Monday through Sunday there. They are provided on reasonable prices. One meal costs max. 43 Kč.
You have to order your meal one day in advance. You can choose from seven meals, usually there are some meat meals, one sweet dish and one vegetable dish. To arrange your meal order you need to posses a university identification card. You make your order through internet - http://menza.upol.cz