Welcome to your new favorite definition of indulgent comfort food: the **Ham, Cheese, and Potato Casserole**. This magnificent dish features exquisite layers of tender, cooked ham, thinly sliced potatoes, delicate shallots, and an abundance of rich, gooey cheese, all baked to golden perfection in a luscious cream sauce. It’s a symphony of textures and flavors designed to warm you from the inside out, making it an ideal choice for cozy family dinners or impressive gatherings.

This exceptional ham, cheese, and potato casserole masterfully combines some of life’s greatest culinary pleasures: abundant carbohydrates, generous amounts of cheese, and the luxurious touch of butter. As David Leite himself puts it, “And because a potato gratin with an over-the-top richness that some may describe as, well, a little indecent still wasn’t outrageously indulgent enough, I added ham to make it a little easier to consider a plateful of this to be a proper dinner.” It’s more than just a side dish; it’s a complete, satisfying meal that truly embodies the spirit of comfort food, elevated to an art form.
Whether you’re looking to repurpose holiday leftovers or simply craving something hearty and deeply flavorful, this gratin offers a perfect solution. The balance of savory ham, sweet shallots, and the earthiness of potatoes, all bound by a creamy, cheesy sauce, creates a complex yet approachable dish. Each bite promises a delightful blend of textures—the crispiness of the golden top, the tender potatoes, and the melting cheese—making it an unforgettable culinary experience.
Essential Notes on Ingredients for Your Perfect Casserole

The success of any great recipe lies in the quality and preparation of its ingredients. For this ham, cheese, and potato casserole, choosing the right components is key to achieving its signature depth of flavor and creamy texture.
- Ham: This recipe presents a fantastic opportunity to utilize leftover roasted fresh ham, perhaps from a holiday meal. The savory, slightly smoky notes of cooked ham are irreplaceable in this dish. If you don’t have leftovers, opt for thickly cut deli ham. Look for honey-baked or a good quality smoked ham, ensuring it’s not too thinly sliced, as it can get lost in the layers. The ham provides a salty counterpoint to the rich cream and sweet shallots, adding a substantial protein element that transforms this gratin into a complete meal.
- Yukon Gold Potatoes: These versatile potatoes are the star of our casserole. Their waxy-starchy balance means they retain their shape beautifully when baked, preventing a mushy texture, while still becoming wonderfully tender and creamy. Their slightly buttery flavor complements the other rich ingredients perfectly. Avoid starchy Russet potatoes, which can fall apart, and overly waxy red potatoes, which might not absorb enough of the creamy sauce. Uniformly thin slices, ideally 1/8 inch thick, are crucial for even cooking and elegant layering, making a mandoline slicer a valuable tool.
- Cheese: The choice of cheese significantly impacts the casserole’s overall flavor profile. Strongly flavored, excellent melting cheeses like Gruyère or Swiss are ideal, imparting a nutty, complex taste that cuts through the richness of the cream. Other fantastic options include Fontina or Comté, known for their superior melting capabilities and nuanced flavors. It is vital to shred your own cheese from a block; pre-shredded varieties often contain anti-caking agents that hinder smooth melting, resulting in a gritty texture instead of a luscious, gooey finish. Experiment with a blend of cheeses for even more depth.
- Shallots & Garlic: These aromatic powerhouses form the savory foundation of the casserole. Sautéing the thinly sliced shallots until soft and golden brings out their natural sweetness, providing a delicate, oniony flavor without the harshness of common onions. A single crushed garlic clove rubbed into the baking dish infuses a subtle, pervasive aroma throughout the entire dish, creating an inviting backdrop for the other ingredients.
- Heavy Cream: This is where the magic happens, transforming simple ingredients into a luxurious gratin. Full-fat heavy cream is non-negotiable for achieving the desired richness and creamy texture. It binds the layers together, softening the potatoes and melding with the cheese to create a decadent sauce. Avoid lighter creams or milk, as they lack the necessary fat content for the classic, indulgent gratin experience.
- Butter: Beyond its role in sautéing shallots, butter is used to grease the baking dish, ensuring a non-stick surface and contributing to the golden-brown crust. Its rich flavor permeates the edges of the casserole, enhancing the overall taste.
Ham, Cheese, and Potato Casserole FAQs
For a gratin or casserole, Yukon Gold potatoes are truly the gold standard. They offer a superb balance of characteristics: they’re drier and fluffier than waxy varieties, but hold their shape far better than starchy Russets. This versatility means they’ll bake into solid, beautifully sliced layers that are both soft and tender, without turning into an undesirable mush. Their inherent creamy texture and slightly sweet flavor also beautifully complement the rich ham and cheese.
Absolutely! While this casserole is a brilliant way to use up leftover holiday ham, you’re still in luck if you don’t have any on hand. Six ounces of thick-sliced, good-quality deli ham – particularly honey-baked or a premium smoked variety – will work wonderfully. Ensure the slices are thick enough to cut into matchsticks or cubes without falling apart during baking, offering that satisfying textural bite. This flexibility means you have no reason not to make this incredible dish whenever the craving strikes!
Yes, with a few considerations! You can assemble the entire casserole up to one day in advance. Cover it tightly with plastic wrap and refrigerate. When you’re ready to bake, let it sit at room temperature for about 30 minutes to an hour to take the chill off, then bake as directed, potentially adding an extra 10-15 minutes to the baking time to ensure it heats through completely and gets golden. This makes it a fantastic option for entertaining or meal prepping.
The key to perfectly cooked potatoes lies in consistent, thin slicing and sufficient baking time. Aim for uniform 1/8-inch thick slices; a mandoline is highly recommended for this. During baking, ensure the cream is bubbling gently around the edges, indicating active cooking. The ultimate test is piercing the casserole with a knife or skewer – it should slide through all layers of potatoes with minimal resistance. If the top browns too quickly, you can loosely cover the dish with foil for the remaining cooking time.

Decadent Ham, Cheese, and Potato Casserole
Recipe by David Leite
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Ingredients
- 1 tablespoon unsalted butter, softened to room temperature, plus extra for generously greasing the baking dish
- 3 medium shallots, peeled and very thinly sliced lengthwise for delicate texture
- 6 ounces cooked ham (preferably from a glazed ham or premium thick-sliced honey deli ham), cut into small matchsticks or 1/2-inch cubes
- 1 garlic clove, freshly crushed and peeled for maximum aroma
- 4 large Yukon Gold potatoes, peeled and thinly sliced (about 1/8 inch thick)
- Kosher salt and freshly ground white pepper, to taste for seasoning layers
- 10 ounces Fontina, Comté, Swiss, or Gruyère cheese, freshly shredded from a block for best melting results
- 1 to 1 1/2 cups heavy cream, full-fat for ultimate richness
Instructions
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Prepare Your Oven and Baking Dish: Preheat your oven to 350°F (175°C). Position an oven rack in the middle of the oven. For easy cleanup and to catch any potential drips, line a rimmed baking sheet with aluminum foil. This step is crucial for managing any overflow from the bubbling cream.
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Sauté the Shallots and Combine with Ham: In a medium-sized skillet, melt 1 tablespoon of room-temperature butter over medium heat. Add the thinly sliced shallots and sauté gently, stirring occasionally, until they become beautifully soft and lightly golden brown, which should take approximately 5 to 10 minutes. Once softened, carefully scrape the caramelized shallots into a mixing bowl, add the diced or matchstick ham, and stir thoroughly to combine these flavorful components.
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Infuse Garlic Flavor into the Dish: Take the crushed and peeled garlic clove and rub it vigorously over the bottom and sides of your 2-quart baking dish or gratin dish. This imparts a subtle, aromatic garlic essence throughout the casserole. Allow the dish to rest for a few minutes to let the garlic flavor settle, then generously rub the bottom and sides of the dish with more butter. This ensures a rich crust and prevents sticking.
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Slice the Potatoes Uniformly: Peel the Yukon Gold potatoes. Using a mandoline slicer or a very sharp knife, carefully slice the potatoes crosswise into uniform 1/8 inch (3 mm) thick rounds. Consistency in thickness is paramount for even cooking. A mandoline makes this task quick and ensures perfect slices, which are key to the gratin’s elegant layered structure.
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Assemble the Casserole Layers: Begin by arranging an overlapping layer of sliced potatoes in the bottom of your prepared gratin dish, much like a splayed deck of cards. Season this potato layer lightly with kosher salt and freshly ground white pepper. Evenly sprinkle about one-third of your ham and shallot mixture over the potatoes, followed by roughly one-third of the shredded cheese. Repeat this layering process two more times, ensuring each potato layer is seasoned, and finishing the top layer with a generous amount of cheese. If the casserole seems too high, gently press down on it to ensure it fits comfortably within the baking dish’s edge.
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Add the Cream: Carefully place your assembled casserole dish onto the foil-lined rimmed baking sheet. Gently drizzle the heavy cream all along the sides of the dish, allowing it to seep down between the potato layers. Be cautious not to pour directly onto the cheese, which could displace it. Continue adding cream until you see it rising visibly alongside the potatoes, but stop before the potatoes are completely submerged or “drowning.” The goal is for the cream to bind and moisten, not to create a soup.
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Bake to Golden Perfection: Place the uncovered casserole into the preheated oven. Bake for 60 to 80 minutes, or until the cream is happily bubbling along the edges, the top is beautifully crisp and golden brown, and a sharp knife or skewer can easily pierce through all the potato layers without resistance, indicating they are fully tender. Once baked, remove the casserole from the oven and let it stand for at least 10 minutes before serving. This allows the sauce to set and makes for easier, cleaner serving.
An LC Original
This recipe is an original creation from the culinary experts at Leite’s Culinaria, meticulously developed and tested to bring you the highest quality and most delicious results. We pride ourselves on crafting unique and inspiring dishes that delight and satisfy.
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Nutrition Information
Calories: 864 kcal
Carbohydrates: 38 g
Protein: 33 g
Fat: 65 g
Saturated Fat: 39 g
Monounsaturated Fat: 20 g
Trans Fat: 1 g
Cholesterol: 238 mg
Sodium: 1120 mg
Fiber: 5 g
Sugar: 5 g
Nutrition information is automatically calculated and provided as an estimate. It should only be used as an approximation and is not a substitute for professional nutritional advice.
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Tips for Success: Achieving the Ultimate Casserole
To ensure your ham, cheese, and potato casserole turns out perfectly every time, consider these expert tips derived from numerous tests and enthusiastic reviews:
- Uniform Potato Slices: The most crucial step is achieving consistently thin potato slices (1/8 inch). A mandoline slicer is highly recommended for this, as it ensures even cooking. If slicing by hand, take your time to make uniform cuts.
- Season Every Layer: Don’t just season the top! Lightly seasoning each potato layer with salt and pepper builds depth of flavor throughout the dish. Remember that ham and cheese contribute saltiness, so be mindful not to over-salt.
- Don’t Drown the Potatoes: When adding the heavy cream, pour it slowly along the sides of the dish. You want the cream to rise alongside the potato layers, providing moisture and richness, but not completely submerging them. This balance helps create that desirable crispy top and tender interior.
- Choose Your Cheese Wisely: Opt for high-quality, block cheeses like Gruyère, Fontina, Comté, or Swiss. Shredding them fresh ensures optimal melting without the additives found in pre-shredded varieties. These cheeses offer robust flavors that stand up to the other rich ingredients.
- Prevent Over-Browning: If your casserole’s top is browning too quickly before the potatoes are tender, simply cover it loosely with aluminum foil for the remainder of the baking time.
- Rest Before Serving: Allow the casserole to rest for at least 10-15 minutes after removing it from the oven. This crucial step allows the cream sauce to set, making for cleaner slices and preventing a runny dish.
Serving Suggestions & Variations
This ham, cheese, and potato casserole is wonderfully versatile. While hearty enough to be a standalone main course, it also pairs beautifully with a variety of side dishes:
- Green Salad: A crisp, refreshing green salad with a vinaigrette dressing offers a lovely contrast to the richness of the casserole.
- Steamed or Roasted Vegetables: Simple steamed asparagus, roasted broccoli (as suggested by a tester!), or green beans provide a fresh, healthy accompaniment.
- Crusty Bread: A warm loaf of crusty bread is perfect for soaking up any extra creamy, cheesy sauce.
Feel free to experiment with variations:
- Different Meats: Instead of ham, consider using leftover roasted chicken, turkey, or even cooked sausage for a different flavor profile. Italian sausage or chorizo could add a spicy kick.
- Add Herbs: Fresh thyme or rosemary sprigs tucked between the layers, or chopped fresh parsley stirred into the ham and shallot mixture, can elevate the aromatics.
- Vegetable Additions: A layer of thinly sliced mushrooms or sautéed spinach could be a welcome addition, adding more depth and nutrients.
- Spice it Up: A pinch of cayenne pepper or a dash of nutmeg in the cream can add subtle warmth and complexity.
What Our Recipe Testers Say
We believe in recipes that work, every time. That’s why we put our dishes through rigorous testing by home cooks like you. Here’s what our dedicated recipe testers had to say about this delightful Ham, Cheese, and Potato Casserole:
E. Volpe
This ham, cheese, and potato casserole was a godsend! I was in the process of freezing the leftover New Year’s Day ham (you can only endure so many ham sandwiches!) when this recipe popped up in my inbox.
As stated in the instructions, a mandoline “cuts” (cooking humor) your prep time and gives you even slices.
I was able to create three perfect layers in my two-quart glass dish. I found using a glass dish was great because it allowed me to see how the cream (I used 1 1/2 cups) covered each layer.
My mother really enjoyed it and she continued to talk about it the following day.
Virginia H.
This is a wonderful recipe that reminds us of how versatile a gratin can be. This is a sturdy method and can handle ingredients on hand. Experiment with different cheeses, meats, chorizo, pancetta, etc., just be sure your potatoes are cooked through at the end and, if the cheese is turning too golden, then cover it with foil.
This casserole was tasty and there isn’t any way it couldn’t be with this lineup of ingredients. This could be a great side but lovely as the main dish for a weeknight dinner with plenty of green veggies. Shallots should be added to everything in my opinion!
Prep wasn’t bad, although I couldn’t find the mandoline it’s still a manageable number of potatoes to slice, so that went by quickly. (It helps create good knife skills.)
The children gave it a thumbs up and finished all of the grilled broccoli on their plate, mopping up the cheese sauce with it. Tons of flavors for such a simple dish.
Carol Hays
This ham, cheese, and potato casserole came out creamy and was greatly enjoyed by my whole family. The only problem that I had while trying the recipe was that I think that there should have been more ham and shallots. There wasn’t quite enough of this mixture for the three layers of potatoes.
After an hour in the oven, the potatoes were creamy and the casserole was browned and bubbly. It was very delicious!
Greg Crawford
This recipe is pretty much the definition of decadent. Gobs of melted cheese, savory ham and shallots, creamy potatoes, and silky heavy cream. It’s one of those dishes you tell yourself to stop eating because of the calories, but you can’t. What’s great is that it doesn’t take many ingredients and, as the headnote suggests, it’s perfect if you happen to have some leftover ham hanging around.
All the time is in the slicing of the potatoes, shredding the cheese, and sautéing the onions. Once that’s done, it comes together quickly. And it can easily work for a weeknight dinner. We were a little light on the cream—it didn’t quite crest the potatoes—but that was okay because there was enough for it to do its job of turning the cheese into a luxurious sauce.
The recipe says to season each layer with salt and pepper. I would go very light on the salt because I found it a little salty (although not too salty). I think the ham and cheese provide some of the saltiness. We used fontina cheese.
While I wouldn’t make this a weekly staple (as I said, it’s very rich!), I would definitely make this again.
Chiyo Ueyama
I’m somewhat of an anxious potato-gratin maker. I never know if the potato-liquid-baking dish ratio will work out. It’s hard to handle uncertainty sometimes. Now this reliable recipe is going to forever alleviate my anxiety. Oh, and that it makes a delicious casserole is definitely a plus! (Not that I was concerned about the flavor, with fontina, cream, shallots, and ham on the list.)
I love the traditional scalloped potatoes with just cream and cheese, but I wholeheartedly embrace the additions of ham and shallots in this recipe. Their flavors enhance the gratin without getting in the way of other ingredients.
I bought a pint of heavy cream (473 ml, almost 2 cups) and used the entire amount for the gratin. And it made a lot of sauce, which I didn’t mind, but I would recommend using 1 1/2 cups if you prefer your casserole to be on a thicker dryer side.
Jeri Henry
This ham, cheese, and potato casserole was delicious. One of the best potato casseroles I’ve ever had. The addition of sautéed shallots really took this to another level for me. I used a combination of Gruyère and Gouda.
Jackie Gorman
With my first bite of this, I thought, “Wow. This is really good.” And after a few more bites, I found that I was standing at the stove, adding a bit more to my tasting dish, and then a bit more. Finally, good sense prevailed, and I got myself to walk away.
After all was said and done, I found myself trying to figure out just how often I would allow myself to make this dish. It’s quite rich, as you can imagine when reading the list of ingredients, so this is not something that I will make as often as I would like to, but it sure can be a treat when I want to reward myself with indulgence.
I used Comté for my cheese. Good choice! After you pour the cream into your casserole, let it rest so that the cream can settle in.
We are confident that this Ham, Cheese, and Potato Casserole will become a cherished recipe in your kitchen. Its simplicity, rich flavors, and comforting nature make it an irresistible choice for any occasion. Enjoy the process of creating this culinary masterpiece and savor every decadent bite!