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cheesy mashed potato casserole

Cheesy Mashed Potato Casserole

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Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes

Ingredients
  

  • 4 pounds Russet potatoes, chopped
  • 1/4 cup butter
  • 2 teaspoons  garlic powder
  • 2 teaspoons  onion powder
  • 3/4 cup light sour cream
  • 3/4 cup skim milk
  • 1/2 cup whole wheat Panko crumbs
  • 1 cup sharp cheddar cheese, shredded divided
  • 1 cup mozzarella cheese, shredded divided
  • 1/2 cup Parmesan cheese divided
  • 4 green onions, chopped
  • black pepper and salt to taste

Instructions
 

  • Preheat oven to 400ºF. Spray a 13 x 9 in pan with non-stick cooking spray.
  • Boil potatoes, about 20 minutes or until soft.
  • Drain potatoes and mash.
  • Combine mashed potatoes with sour cream, milk, garlic powder, onion powder, salt and black pepper.
  • Stir in 1/2 cup cheddar cheese, 1/2 cup mozzarella cheese and 1/4 cup Parmesan cheese.
  • Add to a casserole dish, top with Panko crumbs, remaining cheese and green onions.
  • Cover with aluminum foil and bake for 20 minutes or until potatoes are warmed thoroughly.
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