Thanksgiving Turkey & Spinach Stuffing Casserole with Cheddar & Cranberry Sauce
Thanksgiving leftovers have a way of taking over the refrigerator. There’s turkey in one container, stuffing in another, and just enough cranberry sauce left to make you wonder what to do with it. Instead of reheating everything separately, bring those familiar holiday flavors together in one comforting dish. This Thanksgiving Turkey & Spinach Stuffing Casserole combines tender roasted turkey, savory stuffing, fresh baby spinach, melted cheddar cheese, and a little cranberry sweetness in an easy, family-friendly meal.
What makes this casserole especially appealing is the balance of flavors and textures. The stuffing absorbs a rich mixture of chicken broth and butter, creating a moist, savory foundation for the turkey. Fresh spinach adds color and a mild, earthy flavor, while cheddar cheese melts into a golden topping. A little Peppers of Key West Jalapeño Garlic Hot Sauce brings gentle pepper heat and a savory garlic kick without overwhelming the traditional Thanksgiving ingredients.
The finishing touch is our Not Your Grandma’s Cranberry Sauce. Its sweet-tart flavor cuts through the richness of the stuffing and cheese, while its subtle heat adds another layer of flavor. Whether you’re feeding family the weekend after Thanksgiving or simply looking for a satisfying way to use leftover roasted turkey, this casserole turns familiar ingredients into a meal worth making again.
Ingredients
For the Turkey & Spinach Stuffing Casserole
- 1 can (14½ ounces) reduced-sodium chicken broth
- 3 tablespoons butter
- 3 cups dry seasoned stuffing mix
- 3 cups cooked Thanksgiving turkey, cut into bite-sized cubes
- 2 cups fresh baby spinach, roughly chopped
- ½ cup Not Your Grandma’s Cranberry Sauce
- ¾ cup shredded cheddar cheese
- 2 teaspoons Peppers of Key West Jalapeño Garlic Hot Sauce, or to taste
Optional Finishing Touches
- Freshly chopped parsley
- Freshly cracked black pepper
- Additional cranberry sauce for serving
- A little extra shredded cheddar cheese
Instructions
- Preheat the oven. Heat your oven to 350°F. Lightly grease an 11 × 7-inch baking dish with butter or nonstick cooking spray.
- Prepare the broth mixture. In a large saucepan over medium heat, bring the chicken broth and butter to a gentle boil. Remove the saucepan from the heat and stir in the Peppers of Key West Jalapeño Garlic Hot Sauce.
- Moisten the stuffing. Add the dry stuffing mix to the hot broth mixture and stir until evenly moistened. Let it stand for approximately 2–3 minutes so the stuffing absorbs the liquid. Fluff gently with a fork.
- Add the turkey and spinach. Fold the cooked turkey and chopped baby spinach into the stuffing mixture. Stir gently until the ingredients are evenly distributed. The residual heat will begin to soften the spinach.
- Incorporate the cranberry sauce. Add the cranberry sauce in small spoonfuls and fold it through the mixture just enough to distribute pockets of sweet-tart flavor. Avoid stirring so vigorously that the cranberry sauce completely disappears into the stuffing.
- Assemble the casserole. Transfer the mixture to the prepared baking dish and spread it evenly. Sprinkle the shredded cheddar cheese across the top.
- Bake until thoroughly heated. Cover the dish loosely with aluminum foil and bake for approximately 15 minutes. Remove the foil and continue baking for another 10–15 minutes, or until the casserole is hot throughout, the center reaches 165°F, and the cheese is melted. If you’d like a slightly more golden topping, bake uncovered for a few additional minutes.
- Rest and serve. Remove the casserole from the oven and allow it to rest for approximately 5 minutes before serving. Garnish with fresh parsley or black pepper if desired, and offer additional cranberry sauce on the side.
Why This Thanksgiving Stuffing Casserole Works
The appeal of this casserole comes from combining familiar holiday ingredients in a way that feels different from another plate of reheated leftovers. The stuffing acts as the foundation, absorbing the chicken broth, butter, and savory juices from the turkey. Because the turkey is already cooked, it only needs to be reheated thoroughly rather than cooked from scratch.
Fresh baby spinach gives the casserole a welcome contrast in both color and texture. It softens during baking without dominating the flavor, making it an easy addition even for people who don’t usually associate spinach with Thanksgiving dinner. The melted cheddar adds a creamy, savory finish that brings the ingredients together.
The cranberry sauce and Jalapeño Garlic Hot Sauce are what give this version its personality. Cranberry provides a little sweetness and acidity, balancing the rich stuffing and cheese. Meanwhile, the hot sauce adds garlic flavor and a manageable amount of pepper heat. The result is a comforting casserole that still tastes like Thanksgiving, but with enough character to stand on its own.
Tips, Variations & Make-Ahead Preparation
Use the right kind of stuffing. This recipe is designed around dry, seasoned stuffing mix, which absorbs the chicken broth and butter during preparation. If you’re using leftover prepared Thanksgiving stuffing instead, you’ll need to reduce or omit the added broth and butter, depending on how moist the stuffing already is. The finished mixture should be moist enough to hold together without becoming soupy.
Keep the turkey tender. Both white and dark turkey meat work well in this casserole. Dark meat generally stays a little juicier during reheating, while breast meat offers a lighter flavor. Cutting the turkey into bite-sized pieces helps it distribute evenly and warm through without leaving large, dry chunks.
Don’t overmix the cranberry sauce. Rather than stirring it completely into the stuffing, fold it through in small spoonfuls. This creates occasional bursts of cranberry flavor that contrast nicely with the savory turkey, spinach, and cheddar. If you prefer more cranberry flavor, serve additional sauce on the side rather than adding too much moisture to the casserole.
Adjust the heat to suit your family. Two teaspoons of Peppers of Key West Jalapeño Garlic Hot Sauce should add a little character to the broth mixture, but the perceived heat will depend on the sauce and the other ingredients. Start with less if you’re serving people who prefer mild food, or add a few extra drops to individual portions after baking.
Experiment with different cheeses. Sharp cheddar provides a stronger contrast to the cranberry sauce, while mild cheddar gives the casserole a creamier, more subtle flavor. Monterey Jack is another good choice if you prefer a softer, milder cheese. You can also combine cheddar with a little mozzarella for a stretchier topping.
Make the casserole ahead when practical. You can prepare the components in advance and keep them refrigerated separately until you’re ready to assemble and bake. If the casserole is assembled cold, it may require additional baking time to reach 165°F in the center. For Thanksgiving leftovers, pay particular attention to how long the original turkey and stuffing have already been refrigerated.
Store leftovers safely. Cooked turkey and stuffing should generally be refrigerated within two hours and used within three to four days. Turning them into a casserole doesn’t restart that storage period. If you won’t be eating the casserole within the safe storage window, freeze it promptly. Reheat thoroughly to 165°F before serving.
Serving Thanksgiving Turkey & Spinach Stuffing Casserole
This casserole is hearty enough to serve as a complete meal, but a simple green salad or roasted vegetables make excellent accompaniments. Their lighter flavors provide a pleasant contrast to the rich stuffing and melted cheddar.
For a more traditional Thanksgiving-inspired dinner, serve the casserole alongside warm turkey gravy and an extra spoonful of homemade cranberry sauce. The combination brings back the familiar flavors of the holiday without requiring you to prepare another full turkey dinner.
If you’re looking for more creative ways to use holiday leftovers, try our Thanksgiving Leftover Pizza with Turkey, Stuffing, Mashed Potatoes & Cranberry Sauce or Thanksgiving Leftover Turkey Chili with Two Beans & a Spicy Kick. Both offer completely different ways to turn leftover turkey into another satisfying meal.
For holiday menu planning, cooking tips, and more seasonal recipes, explore our Ultimate Thanksgiving Food Guide: Turkey, Side Dishes, Recipes & Holiday Planning.
Frequently Asked Questions
Can I use leftover Thanksgiving stuffing instead of boxed stuffing mix?
Yes. Leftover prepared stuffing works well, but because it’s already hydrated, reduce or omit the chicken broth and butter. Add only enough liquid to keep the mixture moist without making it soggy.
Can I use leftover turkey breast in this casserole?
Absolutely. Cooked turkey breast works well when cut into bite-sized pieces. Combining white and dark meat can provide additional moisture and flavor.
Can I use frozen spinach instead of fresh spinach?
Yes. Thaw the frozen spinach completely and squeeze out as much excess moisture as possible before adding it to the casserole. Excess water can make the stuffing soggy.
How spicy is this turkey and spinach casserole?
The heat is adjustable. Two teaspoons of Jalapeño Garlic Hot Sauce add pepper and garlic flavor, but you can use less for a milder casserole or serve additional hot sauce at the table.
Can I make this casserole without cranberry sauce?
Yes, although the cranberry sauce adds a sweet-tart contrast that helps balance the savory stuffing and cheese. If you prefer, leave it out of the casserole and serve it on the side.
Can I prepare turkey stuffing casserole ahead of time?
Yes. You can prepare the components ahead and refrigerate them until assembly. Keep the original turkey and stuffing storage times in mind, and bake until the casserole reaches 165°F in the center.
