8 med. white potatoes, thinly sliced
1 tsp. salt
1/2 tsp. pepper
1 onion, sliced
1 (10 3/4 oz.) can cream of mushroom soup, undiluted
1 1/2 c. milk

Place half of potatoes in 12 x 8 inch glass baking dish. Sprinkle with salt and pepper; add half the sliced onions. Combine soup and milk; pour over onion and potatoes. Top with remaining onion and potatoes; cover with remaining soup mixture. Cover with waxed paper. Microwave at high temperature for 20 to 25 minutes. Rotate dish 1/2 turn after 10 minutes. Let stand, covered, 3 to 5 minutes.