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+ servings

Easy Pierogi Casserole

Cheesy stuffed shells smothered in onions and more cheese taste just pierogi
Course Main
Cuisine European American
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings 8
Calories 580kcal
Author Dee


  • 10 pieces medium potatoes peeled and cut into large
  • 1 cup milk
  • 3 cups shredded cheddar cheese
  • 2 tablespoons butter
  • Salt and pepper to taste
  • 1 medium yellow onion chopped
  • 1 pound box of jumbo pasta shells
  • Additional butter as needed


  • Boil the potatoes in a large pot of salted water until fork tender, and drain.
  • In the same pot, over low heat, mix the milk and butter, then add the cooked potatoes, salt, pepper and 2 cups of cheddar cheese, and mash until fairly smooth. Set aside.
  • Cook the shells according to package directions, drain and let cool.
  • Stuff the shells with the cheddar cheese potatoes, and place into 2 large baking pans that have been greased with olive oil.
  • Cook the onions in butter until a light golden brown.
  • Pour onions over shells, and top each casserole with remaining shredded cheese.
  • Bake at 350 degrees for about 30 minutes or until cheese is melted.


You can also use storebought mashed potatoes.
You can also add some water to the casserole before baking if you want softer shells.


Calories: 580kcal | Carbohydrates: 78g | Protein: 25g | Fat: 18g | Saturated Fat: 11g | Cholesterol: 54mg | Sodium: 332mg | Potassium: 1328mg | Fiber: 8g | Sugar: 3g | Vitamin A: 540IU | Vitamin C: 31.4mg | Calcium: 436mg | Iron: 9.7mg