I don’t often recommend chains, but sometimes, in a big city like Milano with so many things to do, looking for a restaurant with vegan options can be a pain if you haven’t planned in advance.
So, if you’re in a pinch, try La Piadineria: there are many locations throughout town, it’s inexpensive, easy, and it’s good food, so I included it here.
“Piadina” is the name of the bread and of the sandwich you make with it, kind of a toasted flatbread, here filled with hummus, veggies, and arugula.
They carried a brand of soda that is from Italy: Lusiria. There are many different flavors and it’s one of the best sodas I’ve ever had!
For more info: https://www.lapiadineria.com/