1/2 c. salad dressing
2 tbsp. flour
1/4 tsp. salt
1/8 tsp. pepper
2 tbsp. grated Parmesan cheese
1 c. milk
1 c. shredded cheese
4 c. thinly sliced potatoes
1/2 c. shredded cheese (for topping)

Combine salad dressing, flour, salt and pepper in saucepan. Gradually add milk and cook on low heat, stirring constantly. Add cheese and stir until melted. Place potatoes in baking dish. Pour cheese sauce over potatoes. Sprinkle shredded cheese on top.

Bake at 350°F for 1 hour.