Ham and Potato Casserole in the crockpot delivers creamy, cheesy comfort with herbed stuffing crunch—hands-off and perfect for busy nights or potlucks.
Some casseroles feel like a warm hug, and this one leans all the way in. Shredded hashbrowns and tender ham mingle with a tangy, oniony sauce, then melt beneath a blanket of cheddar. A buttery layer of herbed stuffing on top turns golden and toasty as everything bubbles away in the slow cooker.
It’s the kind of set-it, forget-it supper that feeds a crowd without fuss. Five minutes of stirring, a sprinkle of cheese, a cozy stuffing crust, and the crockpot does the rest. Serve big scoops with a crisp salad or green veg and watch plates come back clean.
What You’ll Need for This Ham and Potato Casserole
- Frozen shredded hashbrowns — The hearty, tender base that soaks up savory sauce without turning mushy.
- Diced ham — Salty, meaty bites throughout; great for using holiday leftovers or deli-cubed ham.
- Cream of onion soup — Adds body and gentle sweetness for a classic creamy casserole vibe.
- Onion soup mix — Deep, savory backbone with herbs and a hint of garlic.
- Sour cream — Tangy richness that keeps the potatoes silky and scoopable.
- Shredded cheddar — Melts into gooey pockets and crowns the casserole with extra savor.
- Herbed stuffing mix — Buttery, crunchy topping that finishes the dish with texture.
- Unsalted butter (melted) — Moistens the stuffing so it bakes up crisp, not dry.
Step-by-Step Ham & Potato Casserole (Slow Cooker)
STEP 1: Lightly mist a large slow cooker (5–6 quarts) with cooking spray. In the crock, stir together frozen hashbrowns, diced ham, cream of onion soup, onion soup mix, and sour cream until every strand of potato is coated.
STEP 2: Smooth the surface and scatter the shredded cheddar over the mixture, covering from corner to corner so you get melty cheese in every scoop.
STEP 3: Sprinkle the dry herbed stuffing mix evenly over the cheese. Drizzle the melted butter across the top, letting it sink into the crumbs so they toast up crisp and flavorful.
STEP 4: Cover and cook on HIGH for about 4 hours, until the edges are bubbling and the center is hot. Avoid lifting the lid early—trapped steam is doing important work softening the potatoes.
STEP 5: Uncover, let the casserole stand 5–10 minutes so the layers settle, then spoon into warm bowls. Add a grind of black pepper or a shower of chopped parsley if you like a fresh finish.
Helpful Tips
- Keep it hearty: Use shredded, not diced, potatoes for the best creamy texture under a crunchy top.
- Even heat: Spread the stuffing in a thin, uniform layer so it toasts rather than steams.
- No soggy top: Drizzle butter lightly but evenly; too much in one spot can make patches greasy.
Serving Ideas for Ham & Potato Casserole
- Simple greens: A lemony salad or steamed green beans adds bright contrast to the rich, creamy base.
- Tangy sidekick: Spoon a little grainy mustard or pickle relish alongside to cut through the cheese and ham.
- Brunch spread: Pair with scrambled eggs and fruit—this casserole happily moonlights at breakfast.
Ingredient Swaps that Work Beautifully
You can tailor the base without losing that cozy casserole feel. Cream of mushroom or cream of chicken soup steps in easily if onion is unavailable. Sharp cheddar is classic, but Monterey Jack, provolone, or a cheddar–Gruyère combo melt like a dream. No stuffing mix? Toss crushed buttery crackers with a pinch of dried herbs and use that as a crunchy cap.
Using leftover holiday ham to your advantage
You’ll get incredible flavor if you cube leftover baked ham with a bit of exterior spice or glaze—it seasons the whole pot. Trim excess fat, cut pieces to about ½ inch, and fold them in frozen hashbrowns for even distribution. If your ham is very salty, taste the sauce before adding more seasoning.
Making this casserole ahead for busy weeks
You can assemble everything in the crock insert up to 24 hours in advance: mix the base, add cheese, then cover and refrigerate. Wait to add stuffing and butter until just before cooking so the topping stays crisp. From cold, expect the cook time to extend by 15–25 minutes; watch for steady bubbles at the edges.
Lightening the dish while keeping comfort
You can lighten the richness by using light sour cream and part-skim cheese, then boosting flavor with extra onion powder or a pinch of smoked paprika. Swap half the hashbrowns for shredded cauliflower to cut carbs while keeping that scoopable texture. The herbed topping still delivers satisfying crunch.
Troubleshooting for perfect texture every time
You’ll avoid a loose casserole by keeping the lid on and resisting early stirring, which can release extra moisture. If, at the end, the center seems looser than you like, leave the lid off and cook on LOW for 20–30 minutes to evaporate steam. If it’s too thick, stir in a splash of warm milk along the edges to loosen.
Storage & Reheating
Cool leftovers, then cover and refrigerate for up to 4 days. Reheat portions in a 325°F (165°C) oven until hot, 12–18 minutes; a quick broil at the end crisps the stuffing. For microwave reheats, use 50–60% power to keep the potatoes creamy, then finish uncovered for 30 seconds to re-crisp the top. To freeze, portion into airtight containers and freeze for up to 2 months; thaw overnight and warm gently, refreshing the topping with a handful of fresh crumbs if needed.
Ham and Potato Casserole
Ingredients
- 1 packet of dry onion soup seasoning mix
- 1 cup of thick cultured sour cream
- 30 ounces of frozen hash brown shreds
- 6 ounces of seasoned herb stuffing crumbles such as Pepperidge Farm
- 1 pound of pre-cooked ham cubed into small chunks
- 2 cups of finely grated cheddar cheese
- 1 can approx. 10.5 oz of creamy onion condensed soup
- ¼ cup of unsalted butter melted
Instructions
- In a slow cooker, blend together the shredded frozen potatoes, diced ham, condensed onion soup, sour cream, and dry onion soup mix until the mixture is fully incorporated.
- Distribute the grated cheddar evenly over the potato and ham mixture.
- Spread the herb-seasoned stuffing mix across the surface, covering the cheese layer completely.
- Carefully drizzle the melted butter over the top of the stuffing to moisten it.
- Cover the crockpot with its lid and set it to cook on the high setting for four hours.
- Once the cooking time is complete, remove the lid and serve the casserole warm.