Potatoes, peeled and sliced round
Lg. onion, sliced round

Layer potatoes and onions in a microwave-safe microwave casserole dish. On top of potatoes and onions, sprinkle parsley, garlic powder and 1/2 stick butter. Cheese may also be used, but it is optional. Add a 1/2 inch of water to bottom of dish. Cook 15 minutes in microwave. Turn dish and cook an additional 15 minutes more.