This slow cooker potato casserole is the kind of reliable potluck dish people immediately ask about after one bite. Using sliced Kennebec potatoes gives it a classic, hearty texture that turns tender and creamy as it cooks, while a short ingredient list keeps the prep especially practical for busy back-to-school days. It has the familiar appeal of a Midwestern cheese-and-potato bake, but the slow cooker makes it easier to transport and serve warm for gatherings.
Serve this casserole alongside baked ham, roasted chicken, meatloaf, or pulled pork for a satisfying meal, or set it out on a potluck table with a crisp green salad and simple steamed vegetables to balance the richness. It also fits nicely into a brunch spread with scrambled eggs, sausage links, and fresh fruit, especially when you want something warm and comforting that can stay ready for serving.
4-Ingredient Slow Cooker Back-to-School Potluck Bubbling Cheese Potato Casserole using Sliced Kennebec Potatoes
Servings: 8 to 10
Ingredients
3 pounds Kennebec potatoes, peeled and thinly sliced
2 cans (10.5 ounces each) condensed cream of chicken soup
2 cups shredded cheddar cheese, divided
1 cup sour cream
Directions
1. Lightly grease the inside of a 5- to 6-quart slow cooker. Peel the Kennebec potatoes and slice them thinly and evenly so they cook at the same rate.
2. In a medium bowl, stir together the cream of chicken soup, sour cream, and 1 1/2 cups of the shredded cheddar until well combined.
3. Layer one-third of the sliced potatoes in the slow cooker, spread over one-third of the creamy mixture, and repeat the layers two more times until all the potatoes and sauce are used.
4. Cover and cook on low for 5 to 6 hours or on high for 3 to 4 hours, until the potatoes are tender. Sprinkle the remaining 1/2 cup cheddar over the top during the last 20 minutes of cooking, then cover again and let it melt.
5. Let the casserole rest for 10 to 15 minutes before serving so the layers set slightly and the sauce thickens. Spoon onto plates or serve directly from the slow cooker.
Variations & Tips
Make it vegetarian: Swap the cream of chicken soup for condensed cream of mushroom or cream of celery soup for a meat-free version with the same creamy texture.
Cheese choice: Sharp cheddar brings the best flavor contrast to the mild potatoes, but Colby Jack or a cheddar-monterey blend also melts well and keeps the casserole extra creamy.
Slicing tip: Try to keep the potato slices about 1/8 inch thick. If some slices are much thicker than others, the casserole may cook unevenly and take longer to become fully tender.
Make-ahead tip: Assemble the casserole in the slow cooker insert a few hours ahead, cover, and refrigerate if your insert is refrigerator-safe. When ready to cook, let it sit at room temperature briefly before starting to avoid a sharp temperature change.
For a more golden finish: If you want deeper color on top, transfer the cooked casserole to a broiler-safe baking dish and broil for a minute or two after slow cooking, watching closely so the cheese does not burn.