Outrageously Delicious, Skinny Au Gratin Potatoes


Oh my goodness…Wait until you taste this amazing potato dish! It’s pretty much the richest low fat or regular potato dish I’ve ever tasted. No one will ever guess it’s made with reduced-fat cottage cheese and buttermilk to replace the heavy cream. Each serving has 177 calories, 2 grams of fat and 5 Blue WW Freestyle SmartPoints and 5 Green. I love serving this side dish for any special dinner. It makes a spectacular presentation. The best thing about it, it’s so simple to make and can be baked in advance.

Prep Time: 20 minutes

Bake Time: 1½ hours


2 cups onions, chopped

1½ cups reduced-fat (2%) cottage cheese

⅔ cup buttermilk

3½ pounds russet potatoes (~4 large baking potatoes)

6 tablespoons Parmesan Cheese, shredded or grated

Salt and fresh ground pepper, to taste


1. Preheat oven to 450 degrees. Cover a baking pan with foil. Line the inside of a 9-inch springform pan with foil too. Spray the foil-lined pan with cooking spray.

2. Place onions on a microwave safe plate and cook for about 4 minutes in the microwave until soft.

3. In a food processor or blender, add cooked onions, cottage cheese, buttermilk and process until smooth. Pour enough of mixture to coat the bottom of the spring-form pan.

4. Peel all potatoes. Slice each very thin by hand or use a mandolin. Arrange 2 layers of slices on the pan. Start at the edge and work in, overlapping slightly. Press down on potatoes then spread with about ⅓ of cheese mixture. Season with salt and pepper and 2 tablespoons of Parmesan cheese. Layer remaining potatoes and cheese 2 more times, ending with cheese mixture. Season with a little salt and pepper and top with remaining Parmesan cheese (It made be made to this point, covered and refrigerated up to 1 day ahead).

6. Cover pan with foil and place on foil-lined pan because it tends to leak while cooking. Bake until potatoes are tender, about 1¼ hours. Remove foil cover and continue baking until cheese is golden brown, about 30 minutes.

7. Remove from oven and let rest for at least 30 minutes before removing from pan. Un-mold and cut into 10 slices.

Makes 10 servings (each serving, 1 slice)

Shopping Tips

A mandolin can be bought at places such as Bed, Bath and Beyond. It’s very handy to use for slicing potatoes and veggies.

WW Freestyle SmartPoints
WW SmartPoints

SKINNY FACTS: for 1 serving (1 slice)
177 calories, 2g fat, 1g sat. fat, 8mg chol, 10g prot, 30g carbs, 4g fiber, 278mg sod, 4g sugar

If you make this recipe, let me know how you liked it. Leave me a comment below or give it a rating. Thanks so much. Happy Skinny Cooking!