This is a quick and easy meal to do, it tastes great and is a nice light meal. Please note: I cooked this in a wok so if you are using a large frying pan, cooking times will vary as woks get very hot. I love mussels, but please make sure you do remove beards and scrub thoroughly as you will end up with a not nice fish smell in your food if you don't. I find if your mussels are very dirty with lots of barnacles on them, than you can not remove, it is often better to boil them separately and add at the end to warm. This way any grit or dirt that remains, ends up in your water not your stir-fry I have done this before, my mussels I bought yesterday were very clean so this was not necessary.