Microwavable Cheesy, Potato And Onion Slice Ingredients: 1 lbs potatoes 1 lbs onions 2 oz grated cheese 2 oz butter or margarine salt and pepper METHOD: Scrub the potatoes and finely slice them. Peel the onions and finely slice them also. Alternately layer potato and onion in a Microwavable dish adding seasoning and adding knobs of butter or margarine between layers. Cover the dish and cook in the microwave on "high for 15 to 20 minutes. When cooked top with grated cheese. Cook in the microwave for 30 seconds if you wish to melt the cheese.