Creamy Ham Potato Scallop

Featured in: Warm Baked Comforts

This dish features thinly sliced potatoes layered with diced ham, enveloped in a smooth cheese sauce made with sharp cheddar and Gruyère. The sauce is crafted by sautéing onion and garlic, then thickened with a blend of milk, cream, and Dijon mustard for subtle warmth. Topped with extra cheese and optional panko breadcrumbs, it bakes until golden and bubbly. Ideal for gatherings, it pairs well with fresh herbs and a crisp green salad.

Updated on Mon, 24 Nov 2025 11:37:00 GMT
Creamy Ham and Potato Scallop Casserole bubbling golden-brown, a comforting casserole with a cheesy topping. Save
Creamy Ham and Potato Scallop Casserole bubbling golden-brown, a comforting casserole with a cheesy topping. | poppyhearth.com

A comforting, crowd-pleasing casserole featuring tender potato slices, savory ham, and a rich, creamy cheese sauce—perfect for potlucks or family gatherings.

This casserole has been a staple at our family gatherings for years, and it never fails to impress everyone's taste buds.

Ingredients

  • Potatoes & Ham: 3 lbs (1.4 kg) russet potatoes, peeled and thinly sliced, 3 cups (400 g) cooked ham, diced
  • Sauce: 6 tbsp (85 g) unsalted butter, 1 large yellow onion, finely chopped, 4 cloves garlic, minced, 1/3 cup (40 g) all-purpose flour, 3 cups (720 ml) whole milk, 1 cup (240 ml) heavy cream, 2 tsp Dijon mustard, 1 tsp kosher salt, 1/2 tsp black pepper, 1/2 tsp paprika, 2 cups (200 g) sharp cheddar cheese, shredded, 1 cup (100 g) Gruyère cheese, shredded
  • Topping: 1 cup (100 g) shredded cheddar cheese, 1/2 cup (50 g) panko breadcrumbs (optional), 2 tbsp unsalted butter, melted (for panko)

Instructions

Step 1:
Preheat oven to 375°F (190°C). Grease a deep 9x13-inch (23x33 cm) baking dish.
Step 2:
In a large skillet over medium heat, melt butter. Add onion and sauté 4-5 minutes until softened. Add garlic and cook 1 minute more.
Step 3:
Stir in flour and cook, whisking constantly, for 1-2 minutes until lightly golden.
Step 4:
Gradually whisk in milk and cream. Add mustard, salt, pepper, and paprika. Continue whisking until smooth and thickened, about 5 minutes.
Step 5:
Remove from heat. Stir in cheddar and Gruyère cheeses until melted and the sauce is smooth.
Step 6:
Spread half the potatoes in the prepared dish. Top with half the ham, then pour over half the sauce. Repeat layers with remaining potatoes, ham, and sauce.
Step 7:
Sprinkle with extra cheddar. If using, toss panko with melted butter and sprinkle over the top.
Step 8:
Cover dish with foil and bake for 50 minutes. Remove foil and bake an additional 20 25 minutes, or until potatoes are tender and top is golden and bubbly.
Step 9:
Let rest 10 15 minutes before serving.
A close-up of Creamy Ham and Potato Scallop Casserole shows off layers of tender potatoes and ham baked to perfection. Save
A close-up of Creamy Ham and Potato Scallop Casserole shows off layers of tender potatoes and ham baked to perfection. | poppyhearth.com

This dish always brings our family together around the table, sharing stories and laughter over a warm hearty meal.

Notes

Add chopped fresh parsley or chives for garnish. For a smoky touch, use smoked ham or add a pinch of smoked paprika. Serve with a crisp green salad or steamed vegetables.

Required Tools

Large skillet, whisk, 9x13-inch (23x33 cm) baking dish, sharp knife and cutting board, aluminum foil

Allergen Information

Contains: Milk/Dairy, Wheat/Gluten (flour, panko), Pork. Individuals with allergies should check all packaged ingredient labels.

Savory Creamy Ham and Potato Scallop Casserole, a family-style dish with a creamy cheese sauce, ready to serve. Save
Savory Creamy Ham and Potato Scallop Casserole, a family-style dish with a creamy cheese sauce, ready to serve. | poppyhearth.com

This casserole is perfect for meal prep and always warms the heart as much as the stomach.

Recipe Questions

What cheeses are best for this dish?

Sharp cheddar and Gruyère provide a rich, creamy flavor and melt smoothly, creating a luscious sauce.

Can smoked ham enhance the flavor?

Yes, smoked ham adds a subtle smoky depth, complementing the creamy and savory notes.

Is it necessary to use panko breadcrumbs on top?

Panko adds a crunchy topping but is optional; the dish remains delicious with just cheese on top.

How should leftovers be stored?

Store in an airtight container in the refrigerator and reheat gently. It can also be frozen for up to two months.

What sides pair well with this casserole?

Fresh green salads or steamed vegetables provide a light contrast to the rich casserole.

Can I substitute Swiss cheese for Gruyère?

Swiss cheese works well as a milder alternative, maintaining the creamy texture.

Creamy Ham Potato Scallop

Layers of tender potato slices, savory ham, and creamy cheese sauce baked to golden perfection.

Prep duration
25 minutes
Cooking duration
75 minutes
Total duration
100 minutes
Created by Grace Holloway

Recipe type Warm Baked Comforts

Skill level Easy

Cuisine type American

Makes 12 Portions

Dietary details None specified

Required Ingredients

Potatoes & Ham

01 3 lbs russet potatoes, peeled and thinly sliced
02 3 cups cooked ham, diced

Sauce

01 6 tablespoons unsalted butter
02 1 large yellow onion, finely chopped
03 4 cloves garlic, minced
04 1/3 cup all-purpose flour
05 3 cups whole milk
06 1 cup heavy cream
07 2 teaspoons Dijon mustard
08 1 teaspoon kosher salt
09 1/2 teaspoon black pepper
10 1/2 teaspoon paprika
11 2 cups sharp cheddar cheese, shredded
12 1 cup Gruyère cheese, shredded

Topping

01 1 cup shredded cheddar cheese
02 1/2 cup panko breadcrumbs (optional)
03 2 tablespoons unsalted butter, melted (for panko)

How-To Steps

Step 01

Preheat and Prepare Dish: Preheat oven to 375°F and grease a deep 9x13-inch baking dish.

Step 02

Sauté Aromatics: Melt butter in a large skillet over medium heat. Add chopped onion and cook until softened, approximately 4 to 5 minutes. Add garlic and sauté for 1 additional minute.

Step 03

Create Roux: Whisk in flour and cook for 1 to 2 minutes until lightly golden, stirring constantly.

Step 04

Add Liquids and Seasonings: Gradually whisk in whole milk and heavy cream. Stir in Dijon mustard, kosher salt, black pepper, and paprika. Continue whisking until the sauce thickens and is smooth, about 5 minutes.

Step 05

Incorporate Cheeses: Remove sauce from heat and stir in sharp cheddar and Gruyère cheeses until fully melted and smooth.

Step 06

Assemble Layers: Spread half of the sliced potatoes evenly in the baking dish, followed by half of the diced ham. Pour half of the cheese sauce over the layers. Repeat with remaining potatoes, ham, and sauce.

Step 07

Add Topping: Sprinkle extra shredded cheddar cheese evenly over the top. If using, toss panko breadcrumbs with melted butter and scatter over the casserole.

Step 08

Bake Covered: Cover dish with aluminum foil and bake for 50 minutes.

Step 09

Bake Uncovered: Remove foil and continue baking for an additional 20 to 25 minutes until potatoes are tender and the top is golden and bubbly.

Step 10

Rest Before Serving: Allow casserole to rest for 10 to 15 minutes before serving to set.

Tools needed

  • Large skillet
  • Whisk
  • 9x13-inch baking dish
  • Sharp knife and cutting board
  • Aluminum foil

Allergy notices

Check ingredients for allergens. Reach out to your healthcare provider with any questions.
  • Contains milk/dairy, wheat/gluten (flour, panko), and pork.

Nutrition breakdown (per portion)

These details are meant for general advice, not medical guidance.
  • Energy: 410
  • Fats: 24 g
  • Carbohydrates: 29 g
  • Proteins: 19 g