Universo Vegano is a vegan fast food chain being developed in Italy, and it's great! I've been in this one in Padova. It was nice. Staff is really friendly and helpful. They doesn't speak English but a little French and the menu was quite easy to understand since there are pictures of each item. The place is quite pleasant and offers room. There are plays for kids if you come with yours.
I was very hungry so I took the vegan hot dog and the focaccia sandwich. They are generous and were not bad but I expected they would have been more tasty. The hot dog was not very smooth (I didn't like so much the sausages) and the sandwich lacked a bit of spice. However, their tiramisu is amazing! I also took the Belle Hélène chocolate-pear pie that was excellent as well as their friends cookies (which are not cookies but biscuits). They have nice drinks as well (an Italian lemonade and the Ubuntu Cola).
To sum up, they offers a good alternative for vegans in Italy so do not hesitate to try the other sandwiches.
Cons: lack of taste of some items