Introduction

Forget wrestling with dough, boiling potatoes, or standing over a pan of frying pierogi.
This Slow Cooker Pierogi Casserole delivers all the soul-warming, cheesy,
carb-loaded comfort of classic Polish pierogi—without the work.
Using smart, store-bought shortcuts and the magic of a slow cooker,
this dish transforms simple ingredients into a rich, nostalgic masterpiece.

Perfect for busy weeknights, potlucks, family gatherings, or cold evenings,
this casserole is the comfort-food equivalent of a warm hug that cooks itself.
Minimal effort. Maximum reward.

Ingredients

The 4-Ingredient Base

• 32 oz frozen pierogi (potato & cheese, potato & onion, or sauerkraut)
• 2 cans (10.5 oz each) cream of onion soup
• 2 cups shredded cheddar cheese (or cheddar-mozzarella blend)
• 1 can (6 oz) French fried onions

Optional Upgrade

• ½ cup sour cream (stirred in before serving)

Instructions & Cooking Method

Step 1: Prepare the Slow Cooker

1. Lightly grease the slow cooker insert to prevent sticking.
2. Spread one can of cream of onion soup evenly across the bottom.

Step 2: First Layer

1. Add half of the frozen pierogi in an even layer (do not thaw).
2. Sprinkle half of the shredded cheese over the pierogi.

Step 3: Second Layer

1. Spread the remaining can of soup over the cheese.
2. Add the remaining frozen pierogi.
3. Top with the remaining shredded cheese.

Step 4: Slow Cook

1. Cover and cook on LOW for 4–5 hours or HIGH for 2–3 hours.
2. The casserole is ready when pierogi are tender and the cheese is fully melted.

Step 5: Crispy Onion Finish

1. During the last 15 minutes, sprinkle French fried onions evenly on top.
2. Cover and allow onions to warm and soften slightly.

Step 6: Creamy Enhancement (Optional)

1. Stir in sour cream just before serving for extra richness.

Cooking Method Explained

This casserole uses slow steaming rather than boiling or frying.
Frozen pierogi gently cook in the creamy soup, absorbing flavor while staying tender.
The cheese melts into a cohesive, luscious sauce, while the fried onions provide contrast.

History of Pierogi

Pierogi are a beloved staple of Polish cuisine, traditionally handmade with dough filled
with potatoes, cheese, onions, or sauerkraut.
For generations, families gathered to prepare them by hand—a labor-intensive but cherished ritual.
This casserole honors those classic flavors while adapting them for modern, busy kitchens.

Benefits of This Dish

• Extremely time-saving
• High comfort and satisfaction factor
• Budget-conscious ingredients
• Great for feeding a crowd
• Flexible and customizable

Variations & Customization

• Add Protein: Kielbasa, Polish sausage, or bacon
• Extra Cheese: Swiss or Monterey Jack
• Vegetable Boost: Sautéed mushrooms or caramelized onions
• Crispier Finish: Broil briefly after slow cooking

Storage & Make-Ahead

Store leftovers in an airtight container for up to 4 days.
Reheat gently in the microwave or skillet with a little butter.
This dish can also be assembled up to 24 hours ahead and refrigerated before cooking.

Conclusion

This Slow Cooker Pierogi Casserole proves that incredible comfort food
doesn’t have to be complicated.
With just a handful of ingredients and almost no effort,
you get a rich, nostalgic, crowd-pleasing meal that feels like home.

For the Lovers of Comfort Food

If you adore cheesy casseroles, cozy flavors, and recipes that practically cook themselves,
this dish deserves a permanent place in your rotation.
It’s comfort food, simplified—yet still deeply satisfying.