I spent five nights in Bariloche on a ski trip and ate here twice (once for my birthday). The set menu provides a soup, drink (the licuados/fruit juices are particularly good), and a plate with several different tastes on it, sort of like a bento box. You can choose between fish or non-fish (vegetarian) options.
I loved the variety of flavors on the plate, even though some were fairly heavy (lots of cheese or eggs). The carrot-based spread they served to go with the fresh bread at the beginning of the meal was so good that I spooned it all out of the cup and ate every single bit.
Although HappyCow only lets me give this restaurant 4 cows because it serves meat, I would give it 5 cows if I could. I felt incredibly lucky to find such a vegetarian-friendly place in the depths of Argentina amongst the usual fare of parillas and pizzas.