Cape Cod Mashed Potato Casserole

Prep: 15 min Cook: 60 min Serves: 6 Cuisine: American

A creamy, cheesy potato casserole with a tangy sour cream base and a crispy Parmesan topping—comforting, rich, and perfect for family dinners or holiday gatherings.

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Ingredients

  • 10 medium potatoes
  • 1 cup sour cream
  • 1 cup cottage cheese
  • 1 tablespoon grated onion
  • 1 cup margarine (1/4 lb.)
  • 1/4 teaspoon pepper
  • 1 teaspoon salt
  • 1/4 cup grated Parmesan cheese

Instructions

  1. Cook potatoes until tender, then mash well.
  2. Add sour cream, cottage cheese, grated onion, margarine, pepper, and salt; mix until smooth.
  3. Transfer mixture to a casserole dish.
  4. Sprinkle grated Parmesan cheese over the top.
  5. Bake at 350°F for 60 minutes, checking for golden browning after 45 minutes.

Nutrition & Diet Analysis (per serving)

512 kcal 26% DV
Protein Fat Carbs

Macronutrients

Protein 16.8g 34% DV
Total Fat 31.4g 40% DV
Carbs 41.7g 15% DV
Fiber 2.9g 10% DV
Sugar 3g 6% DV

Electrolytes

Sodium 10352.2mg 100% DV
Potassium 745.5mg 16% DV
Cholesterol 11.5mg 4% DV

Vitamins & Minerals

Vitamin A 41.8mcg 5% DV
Vitamin C 27.5mg 31% DV
Vitamin D 0mcg
Calcium 275.3mg 21% DV
Iron 2.2mg 12% DV

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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