Preparing the Ingredients:
Begin by peeling and thinly slicing the potatoes. Uniform thickness is one of the most important regulations for slow cooker casseroles, as uneven slices can lead to inconsistent cooking. Aim for slices about 1/8-inch thick.
Dice the cooked ham into bite-sized pieces and finely chop the onion. These ingredients should be evenly distributed throughout the casserole to ensure balanced flavor in every serving.
Assembling the Casserole:
Lightly grease the inside of the slow cooker to prevent sticking. Arrange a layer of sliced potatoes on the bottom, followed by a portion of diced ham and onion. Season lightly with salt and black pepper.
In a bowl, mix the cream of mushroom soup with milk or cream until smooth. Spoon a portion of this mixture over the layered ingredients, then sprinkle with shredded cheese. Repeat the layering process until all ingredients are used, finishing with sauce and cheese on top.
Slow Cooking Process:
Drizzle the melted butter evenly over the top layer. Cover the slow cooker with its lid and cook on low for 6–7 hours or on high for 3–4 hours. The casserole is done when the potatoes are fork-tender and the sauce is bubbling.
Avoid lifting the lid too frequently, as this releases heat and extends cooking time. Consistent temperature is essential for evenly cooked potatoes.
Serving and Storage:
Once cooked, allow the casserole to rest for 10–15 minutes before serving. This resting period helps the sauce thicken slightly, making it easier to serve clean portions.
Serve the casserole warm as a main dish or hearty side. Leftovers can be stored in an airtight container in the refrigerator for up to four days. Reheat gently in the microwave or oven to maintain creaminess.
Tips:
- Use a mandoline slicer for evenly cut potatoes.
- Do not oversalt, as ham and soup already contain sodium.
- Sharp cheddar cheese provides the best flavor contrast.
- If the casserole seems dry, add a small splash of milk near the end.
- For extra richness, stir in sour cream before serving.
Conclusion:
Cheesy Ham and Potato Casserole in the slow cooker is a reliable, comforting dish built on straightforward cooking principles. With proper layering, careful seasoning, and patience, the slow cooker transforms simple ingredients into a rich and satisfying meal.
This casserole is especially valuable for families, gatherings, or make-ahead meals, offering both convenience and classic flavor. By following these well-defined steps and tips, you can consistently achieve a dish that feels homemade, hearty, and comforting every time.
FAQ:
Can I use frozen potatoes?
Yes, frozen sliced or diced potatoes can be used, but cooking time may vary slightly and texture may be softer.
What can I substitute for cream of mushroom soup?
Cream of chicken or cream of celery soup works well as an alternative.
Can I add vegetables?
Yes, peas, corn, or diced bell peppers can be added for extra texture and nutrition.
Is this casserole freezer-friendly?
It can be frozen after cooking, though the potato texture may change slightly when reheated.
Can I prepare this ahead of time?
Yes, you can assemble the casserole the night before and refrigerate it until ready to cook.