Cheesy Mashed Potato Casserole

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READY IN: 1hr 45mins

Ingredients Nutrition


  1. Cook the potatoes in boiling water until tender, about 20 to 30 minutes.
  2. Drain and then mash the potatoes with the onion salt and sour cream.
  3. Add the butter and mix well.
  4. Spray a 2 quart casserole dish with a non-stick vegetable spray.
  5. Place the potato mixture in the casserole dish and press down slightly.
  6. Top the potato mixture with the cheese.
  7. Cover the casserole and refrigerate for at least an hour before baking.
  8. (This can be made a day in advance and baked just before serving).
  9. Bake at 350 degrees for 1 hour.

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