1 lb. ground beef
6 c. thinly sliced potatoes
1 onion, sliced thin
1 can Cheddar cheese soup
1 soup can milk
1 (15 oz.) can tomato sauce
salt and pepper
1/2 tsp. oregano leaves
1/2 tsp. sugar
1 tbsp. butter
6 oz. sliced Mozzarella cheese
1/2 c. Parmesan cheese

Brown beef. Place potatoes and onion in a large buttered baking dish; add meat. Mix cheese soup with milk until smooth. Add this to meat and potatoes, mixing together. Combine tomato sauce, salt, pepper, oregano and sugar. Pour over top; dot with butter. Cover and bake at 375°F for at least 1 1/2 hours. Remove cover and arrange sliced cheese on top. Sprinkle with Parmesan cheese. Return to oven, uncovered, for about 15 minutes until cheese is bubbly.