Casserole with Turkey, Potatoes, and Onions

This hearty casserole combines tender turkey, creamy potatoes, and sweet onions for a comforting meal that’s perfect any night of the week. It’s easy to prepare and sure to become a family favorite.

Start cooking ↓

TIME1 hr 20 min

SERVINGS4

RATING5.0 / 5

Casserole with Turkey, Potatoes, and Onions

01 / WHAT YOU NEED

Ingredients

2 ½ pounds russet potatoes, peeled and cut into 1/4-inch slices 1 pinch salt to taste 2 cups diced cooked turkey 1 tablespoon extra-virgin olive oil 1 medium onion, sliced horizontally ¼ cup unsalted butter 3 tablespoons all-purpose flour 1 ⅔ cups turkey stock 1 ½ cups grated Parmigiano-Reggiano cheese 1 cup sour cream ¼ teaspoon ground black pepper, or to taste ½ cup bread crumbs 2 tablespoons chopped fresh parsley, or to taste

02 / HOW TO MAKE IT

Let's cook.

Step 1

Start by heating your oven to 350°F (175°C) and buttering a 9x13-inch baking dish. Peel and cut the potatoes, then toss them into a large pot of lightly salted water. Bring it to a boil and let the potatoes cook just until they’re barely tender, about 4 to 5 minutes. Drain them well and spread them out in the baking dish, then layer the turkey on top.

02

Step 2

Next, warm some oil in a skillet over medium heat and add the sliced onions. Cook, stirring occasionally, until they’re just starting to soften, about 4 to 5 minutes. Separate the onions into rings and scatter them evenly over the turkey.

03

Step 3

Using the same skillet, melt some butter over medium heat. Stir in the flour and let it bubble for about 3 minutes, stirring constantly so it doesn’t burn. Slowly pour in the turkey stock while stirring, and bring the mixture to a boil. Keep stirring for another 3 to 4 minutes until it thickens. Take it off the heat, then mix in the grated Parmigiano-Reggiano cheese until it melts. Stir in the sour cream and season with pepper to taste.

04

Step 4

Pour this creamy sauce over the layered potatoes, turkey, and onions in the baking dish. Give the dish a gentle shake to help everything settle evenly. Sprinkle breadcrumbs on top for a nice crunchy finish.

05

Step 5

Pop the casserole into the oven’s center rack and bake until it’s bubbly and golden on top, around 30 minutes. Once it’s done, sprinkle with fresh parsley and serve it warm.

03 / EXTRA DETAILS

Good to know.

Cook's tip

- Use Yukon gold potatoes for a creamier texture.
- Sauté the onions until golden to enhance their natural sweetness.
- Cover the casserole while baking to keep it moist, then uncover at the end to brown the top.

Why you’ll love it

This dish is comforting and hearty, combining tender turkey with creamy potatoes and sweet onions. It’s easy to prepare and makes a satisfying meal for the whole family. The flavors blend beautifully, making it a great choice for busy weeknights or cozy dinners.

Serving ideas

Serve with a fresh green salad or steamed vegetables to balance the richness. A side of crusty bread or dinner rolls also pairs nicely and helps soak up any sauce.

Storage & leftovers

Allow the casserole to cool completely before storing. Keep leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave to maintain texture and flavor.