Mushroom Miso Soup

Is miso an acquired taste? I remember not liking it the first time I had it - I think I was twelve. But these days it's something I really look forward to if we get Japanese. I made this miso soup for a friend last week, and she didn't like it. She'd never had miso before, and it just didn't appeal. Both Ryan and I enjoyed it, and we managed to finish the lot.
I first saw the recipe on cuisine.com.au, but I couldn't find any enoki mushrooms, and didn't want to use bok choi. So I made it with swiss brown and bean sprouts instead. It was a good, quick beginning to our meal.Mushroom Miso Soup
3 sachets of instant shiro miso soup (why did the packet have 3 sachets, I wonder?)
2 big handfuls of mung bean sprouts, rinsed and drained
100g swiss brown mushrooms, thinly sliced
2 spring onions, thinly sliced
1 Tbsp soy sauce
Arrange all the veggies between three small soup bowls. Add the packet miso. Top each bowl with a cup of boiling water, and allow to sit for two minutes. Season with soy sauce.
Serves 3.