Slow Cooker Sausage and Potato Casserole

This Slow Cooker Sausage and Potato Casserole is warm, cheesy, and filling.

You get smoky sausage, tender potatoes, onion, and a creamy cheese sauce in every bite.

Prep is simple, and the slow cooker does most of the work.

Makes: 6 servings
Prep Time: 15 minutes
Cook Time: 4–5 hours on LOW
Total Time: About 4 hours 15 minutes to 5 hours 15 minutes

What You’ll Need

• 1½ pounds baby gold potatoes, cut into ¾-inch pieces
• 14 ounces smoked sausage, sliced into ½-inch rounds
• 1 cup onion, finely diced
• 2 cups sharp cheddar cheese, freshly shredded and divided
• 1 can (10.5 ounces) condensed cream of chicken soup
• ½ cup sour cream
• ½ cup whole milk
• 1 teaspoon garlic powder
• ½ teaspoon smoked paprika
• ½ teaspoon kosher salt
• ½ teaspoon ground pepper
• 2 tablespoons fresh parsley, chopped

Recipe and Instructions

Step 1: Prepare the Potatoes, Sausage, and Onion

Wash 1½ pounds baby gold potatoes and cut them into even ¾-inch pieces. Slice 14 ounces smoked sausage into ½-inch rounds. Finely dice 1 cup onion. Keeping the potatoes close to the same size helps them cook evenly.

Step 2: Make the Creamy Sauce

In a medium bowl, mix 1 can (10.5 ounces) condensed cream of chicken soup, ½ cup sour cream, ½ cup whole milk, 1 teaspoon garlic powder, ½ teaspoon smoked paprika, ½ teaspoon kosher salt, and ½ teaspoon ground pepper. Stir until smooth. Add 1½ cups freshly shredded sharp cheddar cheese and stir again.

Step 3: Fill the Slow Cooker

Put the prepared 1½ pounds of ¾-inch potato pieces, 14 ounces sliced smoked sausage, and 1 cup finely diced onion into a black oval crockpot. Pour the prepared sauce made with the cream of chicken soup, sour cream, milk, seasonings, and 1½ cups cheddar over everything. Gently stir until the potatoes and sausage are evenly coated.

Step 4: Slow Cook Until Tender

Cover the crockpot and cook on LOW for 4–5 hours. Start checking the potatoes around the 4-hour mark. They are ready when a fork slides easily into the center without the potatoes falling apart. Give the mixture a gentle stir near the end if needed.

Step 5: Add the Final Cheese

Sprinkle the remaining ½ cup freshly shredded sharp cheddar cheese evenly over the hot casserole. Cover and cook for another 10–15 minutes, just until the cheese melts.

Step 6: Garnish and Serve

Let the casserole rest uncovered for about 5 minutes so the sauce can settle. Spoon it into a large round white serving bowl and sprinkle with 2 tablespoons chopped fresh parsley. Serve it hot.

Why I Love This Recipe

This is the kind of dinner I like when I want something hearty without standing over the stove. There is something very comforting about lifting the slow cooker lid and finding tender potatoes, smoky sausage, and melted cheese waiting underneath.

The sausage does a lot of the work when it comes to flavor. Its smoky, savory taste spreads into the potatoes as everything slowly cooks. Then the creamy sauce ties it all together.

• Prep takes only about 15 minutes.
• Everything cooks in one slow cooker.
• Smoked sausage brings lots of flavor without extra work.
• Gold potatoes become tender while keeping their shape.
• The creamy cheese sauce makes it especially comforting.
• It is hearty enough to serve as the main meal.

Why This Recipe Works (Quick Science)

The size of the potatoes matters. Cutting them into ¾-inch pieces gives them enough time to become tender without turning into mashed potatoes.

Smoked sausage is already cooked, so it mainly needs time to heat and release some of its smoky, savory flavor into the sauce.

Sour cream and condensed soup give the sauce body. Milk loosens it enough to coat the potatoes. Shredded cheddar melts into the mixture and adds both fat and protein, making the sauce feel rich and creamy.

Adding the final ½ cup cheese near the end also matters. It gives you a fresh layer of melted cheese instead of letting all the cheese cook for several hours.

Pro Tips

• Cut the potatoes into similar ¾-inch pieces. Large pieces can still be hard when smaller ones are already soft.
• Freshly shred the cheddar if you can. It usually melts more smoothly than packaged shredded cheese.
• Don’t keep opening the crockpot. Each time you lift the lid, heat escapes and cooking can take longer.
• Start checking at 4 hours because slow cookers do not all heat at the same rate.
• Don’t overcook the potatoes. Stop when they are easily pierced with a fork but still hold their shape.

Tools You’ll Need

• Black oval crockpot
• Cutting board
• Chef’s knife
• Medium mixing bowl
• Large spoon
• Measuring cups
• Measuring spoons
• Cheese grater
• Fork
• Round serving bowl

Substitutions and Variations

• Potatoes: Red potatoes can replace baby gold potatoes. Cut them into similar-sized pieces.
• Sausage: Kielbasa, turkey smoked sausage, or chicken smoked sausage will also work.
• Cheese: Try Colby Jack or Monterey Jack instead of sharp cheddar.
• Soup: Condensed cream of mushroom soup can replace cream of chicken soup.
• More vegetables: Add diced bell pepper for more color and flavor.
• Spicier version: Use smoked sausage with jalapeño or add a small pinch of cayenne pepper.
• Extra smoky: Add another small pinch of smoked paprika.

Make-Ahead Tips

You can slice the sausage and shred the cheese one day ahead. Keep them covered in separate containers in the refrigerator.

The potatoes are best cut shortly before cooking. If you need to cut them ahead, keep them submerged in cold water in the refrigerator, then drain and dry them well before adding them to the crockpot.

You can also mix the creamy sauce the night before and refrigerate it in a covered container.

Common Mistakes

• Cutting potatoes too large: They may still be firm when the rest of the casserole is ready.
• Cutting potatoes too small: They can become mushy during slow cooking.
• Using raw sausage without adjusting the method: This recipe is designed for fully cooked smoked sausage.
• Opening the lid often: The crockpot loses heat every time the lid comes off.
• Adding all the cheese at once: Saving ½ cup for the end gives the casserole a better cheesy finish.
• Cooking by time alone: Check the potatoes with a fork because different slow cookers cook at different speeds.

What to Serve With

Because this casserole is rich and filling, simple sides work best.

• Steamed green beans
• Roasted broccoli
• Simple green salad
• Steamed peas
• Roasted asparagus
• Fresh tomato salad
• Crusty bread

Macros Information

Approximate nutrition per serving when divided into 6 servings:

• Calories: 600
• Protein: 25 g
• Carbohydrates: 41 g
• Fat: 38 g
• Fiber: 4 g

These are estimates. The exact macros will change depending on the sausage, cheese, soup, sour cream, and milk brands you use.

Leftovers and Storage

Let the casserole cool, then move leftovers to an airtight container. Keep them in the refrigerator for up to 3–4 days.

Reheat individual servings in the microwave until steaming hot throughout. If the sauce becomes very thick in the refrigerator, stir in a small splash of milk before reheating.

You can freeze leftovers, but potatoes and dairy sauces can change texture after freezing. For the best texture, I prefer this casserole fresh or refrigerated rather than frozen.

FAQ

Q: Do I need to cook the smoked sausage first?
A: No. Use fully cooked smoked sausage. Slice it and add it directly to the crockpot.

Q: Do I need to peel the baby gold potatoes?
A: No. Their skins are thin and tender. Just wash the potatoes well before cutting them.

Q: Can I use frozen diced potatoes?
A: You can, but the cooking time and final texture will be different. Fresh baby gold potatoes give you better control over the finished casserole.

Q: Can I cook this on HIGH?
A: Yes. Cook it for about 2–3 hours on HIGH and begin checking the potatoes early. They are done when fork-tender.

Q: Why are my potatoes still hard?
A: They may have been cut too large, or your slow cooker may cook at a lower temperature. Keep the lid closed and continue cooking until the potatoes are fork-tender.

Q: Can I use pre-shredded cheese?
A: Yes. Freshly shredded cheese usually melts more smoothly, but packaged shredded cheddar will still work.

Q: Can I leave out the onion?
A: Yes. The casserole will still work, though the flavor will be a little milder.

Q: Can I double the recipe?
A: Only if your crockpot has enough room. A slow cooker should not be packed to the very top, and a larger batch may need more cooking time.

Final Thoughts

Slow Cooker Sausage and Potato Casserole is simple comfort food made for an easy dinner. The potatoes turn tender, the smoked sausage adds lots of savory flavor, and the creamy cheddar sauce brings everything together.

Serve it straight from the slow cooker with a fresh green side, and you have a hearty meal without much hands-on work. If you make it, leave a comment and share how your casserole turned out or what changes you tried.