❤️ Introduction
This Slow Cooker Cheesy Potato Casserole is the ultimate comforting, decadent side dish or main meal! Tender layers of potatoes cook low and slow in a rich, velvety cream sauce loaded with melted cheese until everything is bubbling, gooey, and packed with flavor.
It’s an effortless dump-and-cook crockpot recipe that is guaranteed to be a massive hit at family dinners, holidays, and potlucks. 🤤
🛒 Ingredients
🥔 For the Potatoes
- 3 lb (1.36 kg) russet potatoes or Yukon Gold potatoes, peeled and thinly sliced
- 1 medium yellow onion, finely diced
- 3 cloves garlic, minced
- 1 tsp salt
- ½ tsp black pepper
- ½ tsp garlic powder
- ¼ tsp onion powder
🧀 For the Cheese & Sauce - 3 cups (300 g) sharp cheddar cheese, freshly shredded
- 2 cups (200 g) Monterey Jack or mozzarella cheese, freshly shredded
- 1 can (10.5 oz / 298 g) cream of chicken or cream of mushroom soup
- 1½ cups (360 ml) heavy cream
- 4 tbsp (½ stick) unsalted butter, melted
- 2 tbsp all-purpose flour (optional, for a thicker sauce)
- 1 tsp Dijon mustard
- ½ tsp salt
- ¼ tsp black pepper
- ½ tsp smoked paprika
👩🍳 Instructions
1️⃣ Prep the potatoes- Peel the potatoes and slice them uniformly into thin rounds (about ⅛-inch to ¼-inch thick) so they cook evenly.
- Grease the inside of a 6-quart slow cooker with butter or non-stick cooking spray.
2️⃣ Layer the potatoes - Place a third of the sliced potatoes at the bottom of the slow cooker.
- Sprinkle with a little diced onion, minced garlic, salt, pepper, garlic powder, and onion powder.
- Repeat the layers until all the potatoes are used.
3️⃣ Make the creamy sauce - In a medium bowl, whisk together:
- Melted butter
- Heavy cream
- Cream soup
- Dijon mustard
- Salt, black pepper, and smoked paprika
- Whisk until smooth and thoroughly combined.
4️⃣ Add the sauce - Pour the creamy sauce mixture evenly over the layered potatoes in the slow cooker, making sure it seeps down between the slices.
5️⃣ Add the cheese - In a separate bowl, mix the shredded cheddar and Monterey Jack/mozzarella cheeses together.
- Sprinkle about two-thirds of the cheese mixture evenly throughout the layers and over the top of the potatoes. Reserve the rest for later.
6️⃣ Slow cook 🔥 - Cover securely with the lid.
- Cook on:
- LOW for 5–6 hours
- or
- HIGH for 3–4 hours
- The potatoes should be completely fork-tender and tender all the way through.
7️⃣ Add the final cheese layer - During the last 15–20 minutes of cooking, sprinkle the remaining shredded cheese over the top of the casserole.
- Cover with the lid again just until the cheese is completely melted and bubbling.
8️⃣ Finish & rest - Turn off the slow cooker and let the casserole rest uncovered for 10–15 minutes before serving so the sauce can thicken up slightly.
- Garnish with chopped fresh chives or green onions if desired.
⭐ Tips for the BEST Cheesy Potato Casserole
🥔 Slice evenly: Consistent, thin potato slices ensure every bite is cooked to perfection without hard or crunchy centers.
🧀 Shred your own cheese: Pre-bagged shredded cheese contains anti-caking agents that can affect how smoothly the cheese melts. Freshly grated melts much creamier!
🥓 Add bacon: Layer in crispy, crumbled bacon between the potatoes for an irresistible smoky flavor.
🧄 Boost the garlic: If you love garlic flavor, add a pinch of roasted garlic powder or top with crispy fried garlic bits before serving.
🍽️ What to Serve With It
This rich and cheesy casserole pairs wonderfully with:
🍗 Roasted or grilled chicken
🥩 Juicy steak or pork chops
🍖 Holiday ham
🥗 Fresh garden salad
Asparagus or green beans
🧊 Storage
Store leftover casserole in an airtight container in the refrigerator for 3–4 days.
Reheat individual portions in the microwave or warm a larger batch in the oven at 350°F (175°C) until heated through.
❄️ Freezing
Because of the dairy and potato content, freezing can sometimes alter the texture of the creamy sauce, but it can be frozen for up to 1 month if tightly sealed. Thaw overnight in the fridge before reheating.
📋 Recipe Card
🧀 Slow Cooker Cheesy Potato Casserole
⏱️ Prep: 20 minutes
🔥 Cook: 5–6 hours LOW / 3–4 hours HIGH
🍽️ Servings: 8
⭐ Difficulty: Easy
🤤 Final Result
Thin sliced potatoes + velvety cream sauce + layers of gooey melted cheese = the ultimate comfort-food casserole! 🥔🧀🔥