How to cook liver in microwave?
I haven't tried this myself, but I have a suggestion. You could slice the liver as you might when frying it. Then put butter/oil and a single layer of the meat in a glass pan. Cover with a paper towel. Microwave only a few seconds at a time and always keep an eye on it. It could explode or burn. Rotate the meat a few times.
You could also try boiling it, but I'm not sure that's what you want.
I fear the meat will never be as tender as you would with other cooking methods :(
But try it, it'll still be edible, unless you burn it