Quick Casserole

Tonight we had a version of a Hamburger Casserole my Mom used to make. I browned a lb. of hamburger in a skillet, and drained the fat. Add one large potato peeled and sliced fairly thin and about 1/4 cup thinly sliced onion. Season with salt and pepper. Add a can of soup (cream of mushroom or cheddar cheese are good) and half a can of milk. If you use mushroom soup you can add a 4 oz. can of sliced mushrooms, drained. Transfer to a 2 quart casserole and bake, covered, at 350 for about 30 minutes until potatoes are tender. Remove cover and top with shredded cheddar and continue to bake until cheese melts. Serve with a salad and rolls.