Ingredients
Method
- Preheat oven to 375°F. Spray a 9x13-inch baking dish with nonstick cooking spray. Peel and slice potatoes into ¼-inch rounds. Set aside.
- In a medium saucepan over medium heat, melt 3 tablespoons of butter. Whisk in 3 tablespoons of flour and cook for 1 minute, whisking constantly, until the mixture is lightly golden and bubbly.
- Slowly pour in 1 cup of chicken broth while whisking, then pour in 1 ½ cups of whole milk. Whisk until smooth and no lumps remain. Bring to a gentle simmer, stirring frequently, and cook for 3-4 minutes until the sauce begins to thicken.
- Reduce heat to low and stir in ½ cup of sour cream, 1 teaspoon garlic powder, 1 teaspoon onion powder, and 1 cup of shredded cheddar cheese. Stir until cheese is completely melted and the sauce is smooth. Season with 1 teaspoon salt and ½ teaspoon black pepper. Taste and adjust seasoning as needed.
- Layer half of the sliced potatoes evenly across the bottom of the prepared baking dish. Top with half of the diced ham (1 ½ cups). Pour half of the cheese sauce evenly over the top. Repeat layers with the remaining potatoes, remaining 1 ½ cups of ham, and the rest of the cheese sauce.
- Sprinkle the remaining 1 cup of shredded cheddar cheese evenly over the top of the casserole. Spray one side of a sheet of aluminum foil with nonstick spray and cover the dish tightly, sprayed side down.
- Bake covered for 50 minutes. Remove foil and bake for an additional 20-25 minutes until the top is golden and bubbly and the potatoes are completely fork-tender.
- Remove from oven and let the casserole rest for 10 minutes before serving. Garnish with fresh parsley if desired and serve warm.
Nutrition
Notes
Make it ahead: Assemble the entire casserole the night before, cover tightly with foil, and refrigerate. When ready to bake, add 10-15 extra minutes to the covered baking time since you are starting from cold. Storage: Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or cover the entire dish with foil and warm in a 350°F oven until heated through. For freezing, assemble before baking, wrap very well to protect against freezer burn, and freeze for up to 3 months. Thaw overnight in the refrigerator before baking. Boost the nutrition: Stir in a cup of frozen peas, diced broccoli, or sautéed spinach when layering for an easy way to get more vegetables into this wholesome, hearty dish without changing the overall flavor.
