I have shopped at Regenbogen several times and was always treated in such a friendly way. Today for the first time I tried their cuisine and didn't regret it. We were served so friendly, the woman explained what was vegan - there were several vegan options, a soup and two main dishes, all three sauces and all the salads.
We tried a veggie Laibchen and Quinoa bake with different sauces and salads. Both were very delicious and as students we paid only 5,5€ each. What a bargain in Vienna!
Sometimes there is a vegan cake as well.
Five happy cows for Regenbogen! Fresh and healthy food and friendly, relaxed people - what more could you ask for?