Make ahead: Bake, cool, and refrigerate for up to 4 days, then reheat covered at 350°F for 20 to 30 minutes. See "How to Make Potato Casserole Ahead" in the post for more options.
Cheesy Scalloped Potato Casserole
An easy, cheesy potato casserole recipe made with simple ingredients. Creamy, comforting, and perfect for holidays or weeknights.
Servings: 8 servings
Calories: 316kcal
Ingredients
- 2 pounds Yukon Gold potatoes peeled and thinly sliced
- 2 tablespoons butter
- 1 medium onion finely chopped
- 3 cloves garlic minced
- 2 tablespoons all-purpose flour gluten-free if necessary
- 2 cups milk or half-and-half
- 1 teaspoon Dijon mustard
- 1 teaspoon salt
- 1/2 teaspoon smoked paprika
- 1/2 teaspoon black pepper
- 1 1/2 cups shredded sharp cheddar cheese divided
- 1/2 cup grated parmesan vegetarian/rennet-free if necessary
- 1/2 cup breadcrumbs or crushed crackers gluten-free if necessary
- 2 tablespoons extra virgin olive oil or melted butter
Instructions
- Preheat the oven to 375°F. Grease a 9x13 baking dish and set aside.
- Melt the butter in a saucepan over medium heat. Add the onion and cook until soft. Stir in garlic and cook another minute.
- Sprinkle in the flour and then whisk until it forms a paste. Slowly whisk in the milk. Cook, whisking, until thickened. Stir in mustard, salt, paprika, pepper, and 1 cup of cheddar until smooth.
- Layer half the Yukon Gold slices in the baking dish. Pour half the sauce over them. Repeat with remaining potatoes and sauce. Top with remaining 1/2 cup cheddar, and the parmesan cheese.
- Mix the breadcrumbs with oil or butter. Sprinkle evenly over the top. Cover with foil and bake for 40 minutes. Uncover and bake 20 minutes more, until golden and bubbly.
- Rest 10 minutes before serving. Enjoy!
Video
Notes
Storage and Reheating
Let the leftovers cool at room temperature before storing them in an airtight container and keeping them in the refrigerator for up to 4 days. You can also cover the casserole dish with foil or plastic wrap, then put it in the refrigerator. The dish can also be kept in the freezer for up to 3 months.
Reheat the dish in the oven at 350°F for about 20-30 minutes for the best texture. If it’s a little dry, add a little milk to help loosen it up before reheating.
Nutrition
Serving: 1serving | Calories: 316kcal | Carbohydrates: 28g | Protein: 12g | Fat: 18g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.1g | Cholesterol: 41mg | Sodium: 626mg | Potassium: 615mg | Fiber: 3g | Sugar: 4g | Vitamin A: 518IU | Vitamin C: 23mg | Calcium: 306mg | Iron: 1mg
