Kielbasa Sausage Cheesy Potato Casserole

Category: Cozy, Hearty Recipes That Feel Like Home

This dish combines smoky kielbasa with layers of creamy potatoes and gooey cheese, creating a hearty meal that's perfect for gatherings. Each bite offers savory sausage, tender potatoes, and melted cheese, topped with a crisp golden crust for extra flavor and texture. Simple to prepare, it uses everyday ingredients like onion, garlic, and heavy cream to infuse rich, comforting taste throughout. Whether served as a main or a side, it's guaranteed to be a crowd-pleaser, and leftovers taste just as delicious after reheating. Enjoy it with fresh herbs or a green salad for a complete, satisfying experience.

A woman with a smile on her face.
Created By Melanie Carter
Updated on Fri, 25 Jul 2025 16:15:01 GMT
A dish of sausage and potatoes. Pin
A dish of sausage and potatoes. | mellierecipes.com

The purpose of this recipe is to bring together smoky kielbasa sausage, tender potatoes, and gooey melted cheese in a hearty Kielbasa Sausage Cheesy Potato Casserole that tastes like pure comfort in every forkful. It is the kind of dish that gathers family around the table and fills the house with mouth-watering aromas. I love how every bite brings a mix of creamy, savory, and crispy textures you just cannot beat.

This recipe has become a favorite for weeknight family dinners and potlucks. The first time I made it I was surprised how everyone kept reaching for seconds and my husband now requests it for every family gathering.

Ingredients

  • Kielbasa sausage: brings a smoky bold flavor that infuses the whole casserole look for a firm sausage with natural casings for the best texture
  • Russet potatoes: create a creamy base that soaks up all the cheesy sauce pick medium potatoes free of green spots or blemishes
  • Onion: adds a sweet and savory depth choose fresh onions that feel heavy and have shiny skins
  • Garlic powder: offers extra savory flavor without overpowering the other ingredients
  • Onion powder: backs up the fresh onion for a deep onion richness
  • Paprika: gives a soft pop of color and a gentle earthy spice use quality sweet or smoked paprika
  • Black pepper: brightens everything up with gentle heat
  • Shredded cheddar cheese: gives that rich gooey creamy finish use freshly grated cheese for better melting
  • Sour cream: adds tangy creaminess and keeps the potatoes soft
  • Milk: loosens the sauce making it velvety and smooth whole milk works best but any milk will do in a pinch
  • Butter: brings a touch of richness and glossiness look for real butter for best flavor
  • Olive oil: is perfect for sautéing and adds a hint of fruitiness use a mild extra virgin kind
  • Parsley: freshens up the look and flavor of the finished dish buy parsley with firm crisp leaves
  • Salt: pulls all the flavors together use kosher salt for more even seasoning

Step-by-Step Instructions

Preheat and Prepare the Baking Dish:
Set your oven to 375 degrees Fahrenheit and lightly grease a 9x13 inch baking dish with a little butter or cooking spray This gets the dish ready so nothing sticks and you get a clean golden finish
Prepare and Parboil the Potatoes:
Peel and cut the russet potatoes into small cubes about half an inch in size Place them in a pot and fully cover with water Bring to a boil over medium high heat and cook for about ten to twelve minutes until just fork tender but not falling apart Drain the potatoes well and let them cool off slightly This helps them keep their shape in the casserole
Brown the Kielbasa:
Slice the kielbasa into rounds about a quarter inch thick Heat a large skillet over medium heat add the olive oil and once warm add sausage Cook five to seven minutes stirring now and then until edges are lightly crisp and golden Remove to a plate and set aside The browning brings out the best flavor in the sausage
Sauté the Onions and Add Seasonings:
In the same skillet add chopped onion Sauté for three to four minutes until softened and slightly translucent Stir in the garlic powder onion powder paprika black pepper and salt Cook for another minute or two until the spices are fragrant This step layers in deep savory flavor
Mix the Casserole Base:
In a big mixing bowl combine the parboiled potatoes sautéed onions and reserved kielbasa Pour in the melted butter sour cream milk and half of the cheddar cheese Mix gently until everything is evenly coated creamy and the flavor is spread throughout
Layer and Top:
Scoop the mixture into the prepared baking dish and spread it out evenly Top with the rest of the cheddar cheese for a thick melty crust This is what creates that irresistible cheesy top
Bake:
Place in the oven and bake uncovered for twenty to twenty five minutes until the top is bubbly golden and the cheese is melted through This short bake finishes cooking and brings all the flavors together
Garnish and Serve:
Let the casserole rest about five minutes Sprinkle chopped parsley over the top for freshness and a touch of color Then scoop and serve while still hot and cheesy
A close up of a delicious Kielbasa Sausage Cheesy Potato Casserole. Pin
A close up of a delicious Kielbasa Sausage Cheesy Potato Casserole. | mellierecipes.com

Cheddar cheese is my favorite ingredient here because it melts so beautifully and gives every bite that extra gooeyness It reminds me of Sunday suppers when my kids would race in the door asking if dinner was ready The cheesier the better was always their motto and I completely agree

Storage Tips

Cool the casserole to room temperature before storing so moisture does not gather and make it soggy Cover with plastic wrap or use an airtight container Stays fresh in the fridge up to three days To freeze let it cool completely wrap tightly and it will last up to three months Thaw overnight in the fridge and reheat until bubbly

Ingredient Substitutions

You can swap kielbasa for any smoked sausage even turkey or chicken sausage for a lighter twist Yukon Gold potatoes are soft and buttery if you want a creamier filling Try mozzarella or a cheese blend instead of cheddar for a milder flavor For a dairy free version use plant based butter and cheese and unsweetened plant milk

A delicious looking potato and sausage casserole. Pin
A delicious looking potato and sausage casserole. | mellierecipes.com

Serving Suggestions

A tart green salad or steamed green beans add a crisp side and balance the rich casserole Sprinkle with extra fresh herbs or thinly sliced green onions for a fresh kick Pairs well with apple sauce or roasted apples on the side for a little sweet counterpoint

Cultural and Historical Context

Kielbasa sausage is a traditional Polish ingredient popular in hearty casseroles all over Eastern and Central Europe Combining it with potatoes and cheese has become a staple comfort food in many American homes The casserole is a meal that brings everyone together and is often a centerpiece during cooler months or big family gatherings

Recipe FAQs

→ What type of potatoes work best?

Russet potatoes are ideal because they hold their shape and absorb flavors well, resulting in a creamy texture.

→ Can I use a different sausage?

Yes, smoked or turkey sausage can replace kielbasa for a lighter or different flavor profile.

→ How do I get a crispy top?

Bake uncovered for the last 15-20 minutes and sprinkle extra cheese to achieve a golden, bubbly crust.

→ Can I make this casserole ahead of time?

Absolutely. Prepare and assemble the dish, then refrigerate. Bake when ready to serve for the freshest taste.

→ What are some good side dishes?

A fresh green salad or steamed vegetables like broccoli balance the richness of the casserole.

→ How should I store leftovers?

Cool to room temperature, cover well, and refrigerate. Reheat in the oven to maintain its creamy consistency.

Kielbasa Sausage Cheesy Potato Casserole

Smoky sausage, gooey cheese, and creamy potatoes baked to perfection in every savory bite.

Prep Time
20 minutes
Cooking Duration
45 minutes
Overall Cooking Time
65 minutes
Created By: Melanie Carter

Recipe Category: Comfort Food Classics

Skill Level: Beginner-Friendly

Cuisine Style: Central European

Result Amount: 6 Portions

Diet Preferences: Gluten-Free Option

What You’ll Need to Make This

→ Main Ingredients

01 450 g kielbasa sausage, sliced into 0.5 cm rounds
02 450 g russet potatoes, peeled and diced into 1.5 cm cubes
03 1 small onion, finely chopped
04 120 g sour cream
05 240 ml milk
06 115 g unsalted butter, melted
07 60 ml olive oil
08 200 g shredded cheddar cheese, divided

→ Seasonings and Herbs

09 1 teaspoon garlic powder
10 1 teaspoon onion powder
11 1 teaspoon paprika
12 1 teaspoon salt
13 1 teaspoon ground black pepper
14 15 g fresh parsley, chopped

How to Prepare

Step 01

Preheat the oven to 190°C and lightly grease a 33x23 cm baking dish with butter or cooking spray.

Step 02

Peel and dice the potatoes into 1.5 cm cubes. Place in a pot of water and bring to a boil over medium-high heat. Cook for 10-12 minutes until just fork-tender. Drain and set aside to cool slightly.

Step 03

Slice kielbasa into 0.5 cm thick rounds. Heat olive oil in a large skillet over medium heat. Add kielbasa and cook 5-7 minutes until browned and crisp on the edges. Remove from skillet and set aside.

Step 04

In the same skillet, add chopped onion and cook 3-4 minutes until translucent. Add garlic powder, onion powder, paprika, salt, and pepper, and sauté an additional 1-2 minutes until fragrant.

Step 05

In a large bowl, combine cooked potatoes, sautéed onions with seasonings, and browned kielbasa. Add melted butter, sour cream, milk, and 150 g of shredded cheddar. Gently mix until evenly combined.

Step 06

Transfer the mixture to the prepared baking dish, spreading evenly. Top with the remaining 50 g of cheddar cheese. Bake uncovered in preheated oven for 20-25 minutes until the cheese is melted and the top is bubbly and golden.

Step 07

Remove from oven and allow casserole to rest for several minutes. Garnish with chopped parsley before serving. Serve warm.

Extra Tips

  1. For extra creaminess, replace milk with half-and-half or whipping cream.
  2. Roasting the potatoes instead of boiling delivers a crispier texture.
  3. Add steamed broccoli or bell peppers for additional color and nutrients.
  4. Substitute smoked or turkey sausage for a lighter version.
  5. Sprinkle freshly chopped thyme or extra black pepper over the top for added aroma.
  6. To make spicier, add a pinch of cayenne pepper or diced jalapeno.

Tools Required

  • Large skillet
  • Mixing bowl
  • Chef's knife
  • Cutting board
  • Medium saucepan
  • Colander
  • 33x23 cm (9x13-inch) baking dish
  • Measuring cups and spoons

Allergen Info

Review ingredients carefully for allergens. Reach out to your healthcare provider if you’ve got specific concerns.
  • Contains milk and milk products (cheese, sour cream, butter).

Nutritional Information (Per Serving)

Remember, this info is purely for reference and isn’t meant to replace dietary guidance.
  • Caloric Value: 450
  • Fat Content: ~
  • Carbohydrate Content: ~
  • Protein Content: ~