Ingredients

  • 4 pounds russet or Yukon gold potatoes, peeled and cubed
  • 3 pounds sweet potatoes, peeled and cubed
  • 2 (8-ounce) cartons spreadable chive and onion cream cheese, divided
  • 1 cup sour cream, divided
  • 1/4 cup shredded Colby-Monterey Jack cheese
  • 1/3 cup milk
  • 1/4 cup shredded Parmesan cheese
  • 1/2 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • For the topping:
  • 1 cup shredded Colby-Monterey Jack cheese
  • 1/2 cup chopped green onions
  • 1/4 cup shredded Parmesan cheese

Method

  • Place russet potatoes in a Dutch oven and cover with water. Bring to a boil. Reduce heat; cover and cook for 15 to 20 minutes, or until tender.
  • Place sweet potatoes in a large saucepan; cover with water. Bring to a boil. Reduce heat; cover and cook for 15 to 20 minutes, or until tender. Drain; mash with half the cream cheese and sour cream and all the Colby-Jack cheese.
  • Drain russet potatoes; mash with the remaining cream cheese and sour cream. Add the milk, Parmesan, salt and pepper; mix well.
  • Preheat oven to 350 degrees.
  • Grease 2 (11-by-7-by-2-inch) baking dishes. Starting with russet mixture on bottom, spread 5 alternating layers of russet and sweet potato mixtures in each dish, ending with russets.
  • Bake, uncovered, for 15 minutes, or until heated through.
  • Combine topping ingredients; divide and sprinkle over casseroles.
  • Bake 2 to 3 minutes longer, or until cheese is melted.