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Dinner · Part 2 of 3: Instructions

Crockpot Cheesy Pierogi and Kielbasa Casserole Step-by-step instructions

A close-up of a ceramic crockpot filled with cheesy pierogies and kielbasa, garnished with green onions.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning, ensure all ingredients are ready for assembly. Remove the frozen pierogies from the freezer just before starting so they do not thaw prematurely. Slice the smoked kielbasa into consistent coin-shaped pieces to ensure even cooking and uniform distribution throughout the dish.

Cube the cream cheese into small, uniform pieces to facilitate a smoother melting process. Have the shredded cheddar and chicken broth measured and ready, ensuring the kitchen workspace is clean and organized for a seamless assembly process.

Ingredients at a glance (6)
  • 2 boxes frozen cheddar pierogies
  • 1 lb smoked kielbasa, sliced into coins
  • 8 oz cream cheese, cubed
  • 2 cups shredded cheddar cheese
  • 1 cup chicken broth
  • Sliced green onions, for serving

Instructions

Layering the ingredients

  1. Layering the ingredients
    Place the frozen cheddar pierogies into the bottom of the ceramic crockpot. Add the sliced smoked kielbasa coins, the cubed cream cheese, the shredded cheddar cheese, and finally pour the chicken broth over the top of the mixture.
    Look for Ensure the ingredients are evenly distributed across the base of the pot for uniform cooking.
    Tip Do not stir the ingredients at this stage; layering allows the flavors to meld perfectly during the slow cooking process.

At the end of this phase, the crockpot should be filled with the distinct layers of pierogies, kielbasa, and cheese, topped with the chicken broth. The ingredients should look orderly and ready for the slow cooking process. Ensure the cream cheese is distributed evenly across the top to allow for a consistent melt as the temperature rises. This organized layering is the foundation for a well-balanced final dish.

Slow cooking

  1. Slow cooking
    Cover the crockpot with its lid and set to HIGH heat. Cook the casserole for three hours. The pierogies will become pillowy soft and tender as they absorb the savory chicken broth and the cheeses melt into a rich, bubbling sauce. Ensure the kielbasa reaches an internal temperature of 160°F (71°C).
    Look for The sauce should be thick, bubbly, and fragrant, with the cheese fully incorporated into a silky consistency.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Avoid lifting the lid during the cooking process to maintain the internal temperature and moisture levels.

During this phase, the kitchen will fill with the savory, smoky aroma of kielbasa and melting cheese. The contents should be visibly bubbling, and the sauce should have transitioned from separate ingredients into a singular, thick, and creamy mixture.

The pierogies should look puffed and tender. Check that the cheese has fully incorporated into the broth, creating a glossy, rich sauce that coats all the ingredients thoroughly.

Final service

  1. Final service
    Once finished, stir the mixture gently to combine the creamy sauce with the pierogies and kielbasa. Scoop the casserole onto plates and garnish with sliced green onions before serving warm.
    Look for The finished dish will be steaming and coated in a thick, velvety cheese sauce.
    Tip Allow the dish to rest for five minutes before serving to let the sauce thicken slightly.

The final result should be a steaming, comforting casserole with a vibrant, creamy appearance. The pierogies should be soft to the touch, and the kielbasa coins should be perfectly tender. Once stirred, the sauce should coat everything evenly. Garnish with fresh green onions to add a bright, crisp contrast to the rich, cheesy flavors of the dish, completing the presentation before serving immediately on warm plates.

Common mistakes

A common mistake is stirring the ingredients too early or too often. The layering method is designed to let the flavors meld naturally; excessive stirring can break the pierogies apart. Another error is using a lid that does not seal tightly, which causes moisture loss and can lead to a dry or scorched sauce.

Additionally, failing to slice the kielbasa into uniform coins can result in uneven cooking, where some pieces remain cool while others become overly tough during the three-hour simmering phase.

How to tell it’s done

The dish is considered done when the pierogies are tender and cooked through, and the sauce has reached a thick, bubbling consistency. The kielbasa should be heated through to an internal temperature of at least 160°F (71°C).

The sauce should be smooth and cohesive, with no pockets of unmelted cheese remaining. If the sauce appears too thin, allow it to rest for a few minutes, as it will naturally thicken as it cools slightly, creating the perfect coating for the pierogies.

  • Ground meat: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can this be made in a smaller crockpot?
  • Why is it important not to stir during the cooking process?
  • Is it necessary to thaw the pierogies before adding them to the crockpot?

Also in Part 3: variations (Spicy Kielbasa Casserole, Vegetable-Packed Casserole), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)