Preparation / Directions:
Preheat oven to 400 F degree. Prepare a 1 1/2 qt casserole with vegetable pan coating. Pare potatoes; slice potatoes crosswise in 1/8-inch slices: if potatoes are large, cut slices in half in half. Mix together flour, salt, and pepper. Place half of the potatoes in prepared casserole. Dot with half the margarine, sprinkle half the seasoned flour on top, then half the onion. Repeat with remaining potatoes, margarine, seasoned flour, and onion. Pour enough hot water in, at one corner only, so that the water barley comes to the top of the potatoes. Cover and bake 50 minutes; then uncover and bake for another 25-30 minutes or until potatoes are browned and tender.