There’s something magical about the aroma of dinner wafting through the house, isn’t there? It reminds me of cozy evenings spent around the table, where hearty meals are celebrated. Today, I’m sharing my favorite recipe for Crockpot Pierogi Casserole with Kielbasa. This delightfully easy dish brings together the warmth of Eastern European comfort food and the convenience of a slow cooker, perfect for those busy days when time seems scarce. Not only is this casserole a crowd-pleaser, but it also allows you to adapt it for a vegetarian lifestyle with simple substitutions. Just imagine coming home to a warm, comforting meal, ready to be served with minimal effort. So, are you ready to discover the magic of this flavorful casserole? Let’s dive in! Why is this casserole a must-try? Ease of Preparation: With just a few layers to assemble, this Crockpot Pierogi Casserole with Kielbasa takes minimal effort, letting you enjoy quality time with family or other tasks. Hearty and Satisfying: This dish beautifully melds soft pierogi and flavorful kielbasa, providing a rich, comforting meal that warms your soul on chilly nights. Adaptable for Everyone: Whether you’re a meat lover or a vegetarian, you can easily adapt this recipe. Substitute the kielbasa with plant-based sausage or load it up with veggies for a nutritious twist, much like my Avocado Mojo Chicken. Leftover Friendly: Great news for meal prep lovers! This casserole keeps well, making it perfect for dinner parties or hearty lunches the next day. Crowd-Pleasing Flavor: The blend of savory spices, creamy textures, and delightful toppings will have everyone asking for seconds—ideal for gatherings or cozy family meals! Crockpot Pierogi Casserole with Kielbasa Ingredients For the Casserole • Frozen Pierogi – Main carbohydrate base; using frozen saves time and ensures delightful tenderness. • Kielbasa – Adds savory protein and flavor; substitute with smoked sausage or plant-based alternatives for a vegetarian option. • Sour Cream – Provides creaminess and a tangy kick; opt for light sour cream for a healthier twist. • Onion – Enhances depth of flavor; shallots can be used for a milder taste. • Cream of Mushroom Soup – Acts as a creamy base; consider cream of chicken for a different flavor or make your own. • Shredded Cheddar Cheese – Offers richness; feel free to omit or replace with a dairy-free option if desired. • Butter – Contributes to the rich flavor profile; olive oil is a lighter alternative. • Salt and Pepper – Essential for seasoning; adjust to taste and consider low-sodium varieties for health. For Garnish • Chopped Chives – Adds a fresh burst of color and flavor; parsley can substitute for a different effect. With these ingredients at hand, you’ll be all set to create a delicious Crockpot Pierogi Casserole with Kielbasa that’s sure to impress! Step‑by‑Step Instructions for Crockpot Pierogi Casserole with Kielbasa Step 1: Prepare the Crockpot Start by lightly spraying your crockpot with non-stick cooking spray to ensure easy cleanup and prevent sticking. This step is essential for achieving that perfect, melt-in-your-mouth texture in your Crockpot Pierogi Casserole with Kielbasa. Step 2: Layer the Pierogi Begin layering your ingredients by placing half of the frozen pierogi directly at the bottom of the prepared crockpot. Arrange them in a single, even layer to promote even cooking, creating a solid foundation for the rich flavors to build upon. Step 3: Add the Kielbasa and Onion Next, scatter half of the sliced kielbasa over the layer of pierogi, followed by half of the chopped onion. This combination will infuse the casserole with savory depth as it cooks. Ensure the kielbasa is evenly distributed to enhance the flavor throughout the dish. Step 4: Mix the Creamy Base In a separate bowl, blend together the cream of mushroom soup, sour cream, and melted butter until the mixture is smooth and well combined. This creamy base will act as the sauce for your casserole, providing richness and a tangy flavor that complements the other ingredients beautifully. Step 5: Add the Creamy Mixture Spread half of the creamy soup mixture evenly over the layered pierogi, kielbasa, and onion in the crockpot. Be sure to reach the edges for a well-flavored casserole. This will help bind everything together and create that velvety texture everyone loves. Step 6: Repeat the Layers Layer the remaining frozen pierogi on top, followed by the rest of the kielbasa and onions. Finally, pour the remaining creamy mixture over the top layer, making sure to cover everything generously. This final layer will ensure your Crockpot Pierogi Casserole with Kielbasa is luscious and satisfying. Step 7: Cook on Low Cover your crockpot with the lid and set it to cook on low for 4-5 hours. The goal is for the pierogi to become tender and the flavors to meld together beautifully. You’ll know it’s ready when the pierogi are soft and the dish is bubbly. Step 8: Add the Cheese During the last 30 minutes of cooking, sprinkle the shredded cheddar cheese evenly over the top of the casserole. Replace the lid to allow the cheese to melt and create a deliciously gooey topping that adds richness to your Crockpot Pierogi Casserole with Kielbasa. Step 9: Serve and Garnish Once the cooking time is up, carefully remove the lid and serve your casserole warm. For a fresh touch, garnish with chopped chives before serving. This final step will add a pop of color and flavor, enhancing the overall presentation of your comforting dish. Make Ahead Options Preparing your Crockpot Pierogi Casserole with Kielbasa can be a game-changer for busy weeknights! You can layer the pierogi, kielbasa, and onions up to 24 hours in advance, assembling everything in the crockpot and storing it in the refrigerator. This method not only saves time, but it also allows flavors to meld beautifully. Just mix the creamy base ingredients and refrigerate them separately; combine right before cooking. On the day you plan to serve, pour the mixture over your layered ingredients, cook on low for 4-5 hours, and sprinkle the cheese on top during the last 30 minutes for that rich, gooey finish. You’ll savor the same deliciousness with minimal effort! How to Store and Freeze Crockpot Pierogi Casserole with Kielbasa Fridge: Store leftovers in an airtight container in the fridge for up to 3 days. This allows you to enjoy the comforting flavors again without hassle. Freezer: For extended storage, freeze portions in freezer-safe containers for up to 1 month. Make sure to let it cool completely before sealing to maintain the best texture. Reheating: When ready to enjoy, thaw overnight in the fridge and reheat in the microwave or oven. Ensure it’s heated through completely, making sure that the cheesy top is gooey and delicious! Serving: Consider serving it with a fresh side salad or steamed veggies to balance the rich flavors of the Crockpot Pierogi Casserole with Kielbasa. Expert Tips for Crockpot Pierogi Casserole Perfectly Layered: Ensure even cooking by layering the pierogi, kielbasa, and onions without crowding. This allows the flavors to meld beautifully. Flavor Boosting: Browning the kielbasa before adding to the crockpot enhances its flavor. A little extra effort makes a big difference in the final dish! Creamy Perfection: For a creamier texture, consider increasing the sour cream or mixing in cream cheese. It elevates your Crockpot Pierogi Casserole with Kielbasa to new heights of indulgence. Sodium Savvy: Check the sodium content in your kielbasa and cream of mushroom soup. Opt for low-sodium options to keep the dish healthful without sacrificing taste. Add Veggies: Sneak in nutrition by adding bell peppers or mushrooms. These additions not only enhance flavor but also make the casserole heartier. Storage Secrets: Leftovers? No problem! Refrigerate for up to three days or freeze for a month. This casserole reheats wonderfully, making it perfect for meal prep. Crockpot Pierogi Casserole with Kielbasa Variations Feel free to let your creativity shine with these delightful twists on the classic casserole, bringing unique flavors to your dinner table. Vegetarian Delight: Replace kielbasa with sautéed mushrooms or plant-based sausage for a veggie-packed version. This swap brings similar heartiness, perfect for meatless nights. Herb-Infused: Experiment with fresh herbs like dill or thyme to elevate the flavor, adding a wonderful aroma and a touch of refreshment. Cheesy Explosion: Try mixing in different cheeses such as gouda or pepper jack for a flavor boost. These alternatives bring richness and a hint of spice, taking your casserole to the next level. Creamy Twist: Add cream cheese to the creamy base for an ultra-smooth texture. You’ll notice how luscious the casserole becomes, making every bite even more enjoyable. Spicy Kick: Incorporate jalapeños or a sprinkle of cayenne pepper into the mixture for an exciting heat level. This will surely please the spice lovers in your home! Veggie Medley: Toss in fresh bell peppers or spinach for added color and nutrients. These vibrant additions not only enhance the casserole but also make it a feast for the eyes. Sourdough Crusty Top: Top the casserole with breadcrumbs and bake for the last 30 minutes to create a crispy, golden crust. This twist adds a textural contrast that’s simply irresistible. Flavorful Base: Substitute cream of mushroom soup with homemade versions that utilize fresh mushrooms and vegetable broth. This allows you to control ingredients and boost the overall taste, much like in my Vegan Chocolate Tart. With these variations, you can customize your Crockpot Pierogi Casserole with Kielbasa to suit any palate or occasion! What to Serve with Crockpot Pierogi Casserole with Kielbasa There’s nothing quite like complementing a hearty meal with sides that enhance its comforting flavors—let’s make it a feast! Crunchy Green Salad: A light salad with mixed greens and a zesty vinaigrette will provide a refreshing contrast to the rich casserole. The crispness will awaken your palate and balance the creaminess beautifully. Steamed Broccoli: Tender steamed broccoli adds a delightful crunch and a pop of color, enriching your meal with nutrients while keeping the focus on the savory casserole. Garlic Bread: This warm, crusty garlic bread is perfect for mopping up every bit of the creamy sauce. It’s an inviting side that will embrace the flavors of the casserole. Roasted Root Vegetables: A medley of carrots, potatoes, and beets roasted until caramelized offers sweetness and earthiness, creating a warm, cozy vibe that marries perfectly with the hearty pierogi. Creamy Coleslaw: Serve a bowl of tangy coleslaw on the side for a fun contrast in texture and flavor. The crunchiness of the slaw will elevate your dining experience with freshness. Fizzy Sparkling Water: A refreshing sparkling water with a squeeze of lemon can cleanse your palate between bites. It’s a simple way to enhance the meal’s overall enjoyment. Dessert Pairing: Finish with a light fruit compote or a slice of apple pie for a sweet note that echoes Eastern European flavors, creating a full-circle dining experience. Crockpot Pierogi Casserole with Kielbasa Recipe FAQs How do I choose the best frozen pierogi for this casserole? Absolutely! When selecting frozen pierogi, look for brands that have a good reputation for quality and taste. Check the packaging for signs of freezer burn or dark spots, which can indicate age. I usually go for a package that prominently features the filling I prefer, like potato and cheese or sauerkraut. What is the best way to store leftover Crockpot Pierogi Casserole with Kielbasa? Great question! To keep your leftovers fresh, store them in an airtight container in the refrigerator for up to 3 days. Ensure the casserole is cooled completely before sealing the container; this helps prevent condensation which might make it soggy. Can I freeze the Crockpot Pierogi Casserole with Kielbasa, and if so, how? Yes, you can! To freeze your casserole, let it cool completely, and then portion it into freezer-safe containers. It can be frozen for up to 1 month. When you’re ready to enjoy it, thaw in the refrigerator overnight. For reheating, you can bake it in the oven or use the microwave until heated through. This preserves its creamy texture and flavor beautifully. What if I want to make a vegetarian version of this dish? Very much possible! To make a vegetarian Crockpot Pierogi Casserole, simply swap the kielbasa for a plant-based sausage or omit it altogether. You can bulk it up by adding additional vegetables, like mushrooms, spinach, or peppers. Replace the cream of mushroom soup with a homemade vegetable-based alternative to keep it hearty and satisfying. How can I avoid common issues when making this casserole? One common issue is uneven cooking due to overcrowding in the crockpot. Make sure to layer the pierogi, kielbasa, and onions evenly. Additionally, browning the kielbasa before adding it can bring out its richness and enhance the overall flavor. Lastly, if you want it creamier, try increasing the sour cream or adding some cream cheese to the mix! Is this casserole suitable for a low-sodium diet? Absolutely! It’s all about the choices you make. Opt for low-sodium kielbasa and cream of mushroom soup to create a healthier dish without sacrificing flavor. Additionally, you can increase the vegetable content, which can naturally enhance the taste and nutrition of the casserole. Crockpot Pierogi Casserole with Kielbasa for Cozy Nights A delightful Crockpot Pierogi Casserole with Kielbasa perfect for cozy nights, blending hearty Eastern European flavors with easy preparation. Print Recipe Pin Recipe Prep Time 15 minutes minsCook Time 5 hours hrsTotal Time 5 hours hrs 15 minutes mins Servings: 6 servingsCourse: Best of 2025Cuisine: Eastern EuropeanCalories: 450 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Casserole1 package Frozen Pierogi Main carbohydrate base; using frozen saves time and ensures delightful tenderness.1 lb Kielbasa Adds savory protein and flavor; substitute with smoked sausage or plant-based alternatives for a vegetarian option.1 cup Sour Cream Provides creaminess and a tangy kick; opt for light sour cream for a healthier twist.1 medium Onion Enhances depth of flavor; shallots can be used for a milder taste.1 can Cream of Mushroom Soup Acts as a creamy base; consider cream of chicken for a different flavor or make your own.1 cup Shredded Cheddar Cheese Offers richness; feel free to omit or replace with a dairy-free option if desired.2 Tbsp Butter Contributes to the rich flavor profile; olive oil is a lighter alternative.to taste Salt Essential for seasoning; adjust to taste and consider low-sodium varieties for health.to taste Pepper Essential for seasoning; adjust to taste.For Garnish2 Tbsp Chopped Chives Adds a fresh burst of color and flavor; parsley can substitute for a different effect. Equipment Crockpot Method Step-by-Step InstructionsStart by lightly spraying your crockpot with non-stick cooking spray to ensure easy cleanup and prevent sticking.Begin layering your ingredients by placing half of the frozen pierogi directly at the bottom of the prepared crockpot.Next, scatter half of the sliced kielbasa over the layer of pierogi, followed by half of the chopped onion.In a separate bowl, blend together the cream of mushroom soup, sour cream, and melted butter until the mixture is smooth and well combined.Spread half of the creamy soup mixture evenly over the layered pierogi, kielbasa, and onion in the crockpot.Layer the remaining frozen pierogi on top, followed by the rest of the kielbasa and onions.Finally, pour the remaining creamy mixture over the top layer, ensuring everything is covered.Cover your crockpot with the lid and set it to cook on low for 4-5 hours.During the last 30 minutes of cooking, sprinkle the shredded cheddar cheese evenly over the top of the casserole.Once the cooking time is up, carefully remove the lid and garnish with chopped chives before serving. Nutrition Serving: 1servingCalories: 450kcalCarbohydrates: 30gProtein: 20gFat: 25gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gCholesterol: 50mgSodium: 800mgPotassium: 500mgFiber: 3gSugar: 2gVitamin A: 15IUVitamin C: 10mgCalcium: 20mgIron: 10mg NotesLeftovers can be refrigerated for up to 3 days or frozen for a month. This casserole reheats wonderfully, making it perfect for meal prep. Tried this recipe?Let us know how it was!