Thanksgiving is a feast, and the joy doesn’t have to end with the last slice of pie! This incredible casserole transforms your holiday bounty into an entirely new, incredibly satisfying meal. It’s the perfect way to enjoy those cherished flavors once again, all baked into one comforting dish. Get ready to easily turn your delicious holiday remnants into The Ultimate Thanksgiving Leftover Casserole.
Why You’ll Love This Ultimate Thanksgiving Leftover Casserole
You’ll adore this recipe for its sheer simplicity and fantastic taste. It solves the eternal question of what to do with all those delicious holiday components. This casserole brings together all your favorites in one easy-to-make dish, ensuring every bite is a taste of home.
- Effortless Post-Holiday Meal: Simply layer your pre-cooked leftovers and bake.
- Transforms Common Leftovers: A creative way to reinvent turkey, stuffing, and mashed potatoes.
- Customizable with Various Ingredients: Easily swap in different vegetables or cheeses.
- Incredibly Satisfying Comfort Food: Hearty, warm, and packed with classic holiday flavors.
- Minimizes Food Waste Efficiently: Gives new life to every delicious scrap.
Reducing food waste is a key benefit, and the USDA offers tips to minimize food waste during Thanksgiving.
Ingredients
Gathering your Thanksgiving leftovers is the first step to creating this delightful dish. You’ll need a few staple components to assemble The Ultimate Thanksgiving Leftover Casserole. This recipe cleverly combines your holiday favorites into a single, cohesive meal.
- Salted butter, for the baking dish
- 4 c. leftover stuffing
- 4 c. chopped skinless leftover turkey (or use rotisserie chicken)
- 1 1/2 c. coarsely chopped leftover green beans
- 1 1/2 c. leftover gravy
- 3 c. leftover mashed potatoes
- 1 large egg yolk
- 1 c. shredded Monterey Jack cheese (about 2 oz.)
- Cranberry sauce, for serving
Notes & Substitutions
Turkey: Don’t have enough turkey? Shredded cooked chicken, like from a rotisserie, works beautifully as an alternative. Green Beans: Feel free to swap green beans for other cooked vegetables. Try cooked corn, peas, carrots, or a medley of mixed vegetables. Sautéed onions or celery also add great flavor. Stuffing: Any type of leftover stuffing, whether cornbread or classic herb, will be delicious in this recipe. Cheese: Monterey Jack offers a lovely melt, but cheddar, provolone, or Swiss cheese are excellent substitutes. Mashed Potatoes: Ensure your mashed potatoes are smooth and creamy for the best topping texture. Gravy: If your mixture seems a bit dry after layering, simply add a little more gravy to ensure moisture.

The Ultimate Thanksgiving Leftover Casserole
Ingredients
Equipment
Method
- Preheat the oven to 425ºF and butter a 9×13-inch baking dish. Crumble the stuffing into the dish and pat it down to form an even crust.
- Scatter the turkey and green beans over the stuffing layer, then pour the gravy evenly on top.
- In a medium bowl, combine the mashed potatoes and egg yolk, mixing until smooth.
- Spread the mashed potato mixture over the turkey layer and sprinkle with the shredded cheese.
- Cover with foil and bake for 20 minutes, then uncover and bake for 20 to 25 more minutes until the top is golden brown and crusty. Let the casserole cool for about 10 minutes before serving with cranberry sauce.
Nutrition
Notes
Tried this recipe?
Let us know how it was!Equipment
You don’t need fancy tools to whip up this amazing casserole. Just a few basic kitchen items will do the trick.
- 9×13-inch baking dish
- Large mixing bowl
- Spatula or spoon
- Aluminum foil
Instructions
Creating The Ultimate Thanksgiving Leftover Casserole is straightforward and fun. Follow these easy steps for a delicious, comforting meal. Each stage is designed to bring out the best in your holiday remnants.
- Prep Oven & Dish: Position a rack in the lower third of your oven. Preheat the oven to a hot 425ºF. Generously butter the bottom and sides of a 9-by-13-inch baking dish. This prevents sticking and adds flavor.
- Form Stuffing Base: Crumble all the leftover stuffing evenly into the prepared baking dish. Use your spatula or hands to gently pat and press the stuffing into a firm, even crust across the bottom of the dish. This forms a sturdy, flavorful base for your casserole.
- Layer Turkey & Veggies: Scatter the chopped leftover turkey evenly over the stuffing layer. Next, distribute the coarsely chopped green beans over the turkey. These layers create a delicious filling for the casserole.
- Add Gravy: Carefully pour the leftover gravy evenly over the turkey and green bean layers. This adds moisture and helps bind the ingredients together, ensuring a flavorful and tender interior.
- Prepare Potato Topping: In a medium-sized mixing bowl, combine the leftover mashed potatoes with the large egg yolk. Mix thoroughly with a spatula or spoon until the mixture is completely smooth and the yolk is fully incorporated. The egg yolk helps the potato topping set beautifully.
- Top with Potatoes & Cheese: Gently spread the prepared mashed potato mixture evenly over the turkey and vegetable layer. Take care not to disturb the layers underneath too much. Once the potatoes are spread, sprinkle the shredded Monterey Jack cheese generously over the entire potato topping.
- Initial Bake (Covered): Cover the baking dish tightly with aluminum foil. Place the covered dish into the preheated oven. Bake for approximately 20 minutes, allowing the casserole to heat through completely.
- Final Bake (Uncovered): Carefully remove the foil from the baking dish. Return the uncovered casserole to the oven. Continue baking for an additional 20 to 25 minutes, or until the top is golden brown and delightfully crusty. The cheese should be melted and bubbly.
- Rest & Serve: Once baked, remove the casserole from the oven and place it on a wire rack. Let it cool for about 10 minutes before serving. This resting period allows the casserole to set, making it easier to slice and serve. Dish out generous portions with a dollop of cranberry sauce on the side for that perfect holiday touch.
Pro Tips & Troubleshooting
Achieving the best results with this casserole is simple with a few key pointers. These tips ensure your dish is delicious and perfectly cooked every time.
- Leftover Quality: Always use fresh, properly stored Thanksgiving leftovers for the best taste and safety.
- Moisture Control: Adjust the amount of gravy as needed. Add more if your stuffing or turkey seems dry to ensure a moist casserole.
- Crispy Topping: For a beautifully golden and crispy cheese topping, ensure you sprinkle the cheese evenly.
- Stuffing Crust: Press the stuffing firmly into the baking dish to create a sturdy, flavorful crust that holds everything together.
- Mashed Potato Texture: Mix the egg yolk thoroughly into the mashed potatoes. This creates a smooth, spreadable topping that browns nicely.
- Prevent Burning: If you notice the cheese browning too quickly during the uncovered bake, lightly tent the dish with foil to protect it.
Serving Suggestions & Variations
This versatile casserole is fantastic on its own, but you can elevate it further with creative additions. Here are some ideas to make your meal even more special.
Serving Ideas: Serve individual portions alongside a crisp, fresh green salad with a light vinaigrette. A side of extra cranberry sauce is always a welcome addition.
Additions: Before serving, consider topping your casserole with crispy fried onions for crunch. Crumbled cooked bacon adds a smoky flavor, or sprinkle with fresh chopped parsley or sage for aromatic notes.
Cheese Variations: Don’t limit yourself to Monterey Jack. Try a blend of sharp cheddar and gruyere, or a smoky provolone for a different twist.
Spice It Up: If you enjoy a bit of heat, mix a small pinch of cayenne pepper or red pepper flakes into the mashed potato layer before spreading.
Vegetable Swap: For a touch of sweetness and a different flavor profile, use leftover mashed sweet potatoes instead of regular mashed potatoes for the topping.
Meat Options: If you have extra, diced ham or cooked sausage can be folded into the turkey layer for added protein and flavor.
Storage & Reheating
Proper storage ensures your delicious casserole remains fresh and enjoyable. You can easily save leftovers for future meals.
Refrigerator: Store any remaining casserole in an airtight container in the refrigerator. It will stay fresh and delicious for up to 3-4 days.
Freezing: For longer storage, freeze individual portions. Wrap tightly in plastic wrap, then foil, or place in freezer-safe containers. It can be frozen for up to 3 months.
Reheating: Reheat individual slices in the microwave until warmed through. For larger portions, cover loosely with foil and reheat in a preheated oven at 300°F (150°C) until hot.
Prevent Dryness: When reheating, especially in the oven, add a splash of chicken broth or extra gravy to the casserole to help maintain its moisture.
Nutrition Information
This information is an estimate based on ingredients.
This nutrition information is provided for general guidance only. The actual values can vary significantly depending on the specific ingredients, brands, and portion sizes you use. Leftover composition can greatly influence the final count.
- Disclaimer: Nutrition facts are estimates and will vary based on your specific leftovers.
- Key Components: Expect a good source of protein from turkey, carbohydrates from stuffing and potatoes, and fats from gravy and cheese.
- Calculators: For precise details, use an online nutrition calculator with your exact ingredient amounts.
- Homemade Freshness: Enjoy the fresh, wholesome ingredients of a homemade meal.
| Nutrient | Estimated Value (per serving) |
|---|---|
| Calories | 550-650 |
| Protein | 35-45g |
| Total Fat | 25-35g |
| Carbohydrates | 40-50g |
| Dietary Fiber | 4-6g |
FAQ
Got questions about making The Ultimate Thanksgiving Leftover Casserole? Here are some quick answers to help you out.
- How long do Thanksgiving leftovers typically last? Most Thanksgiving leftovers, like turkey, stuffing, and green beans, are best consumed within 3-4 days when stored properly in the refrigerator. Cranberry sauce can last up to a week.
- Can I prepare this casserole ahead of time? Yes, you can assemble the entire casserole, cover it tightly, and refrigerate it for up to 24 hours before baking. Add an extra 10-15 minutes to the covered baking time if baking from cold.
- Can I freeze this Thanksgiving leftover casserole? Absolutely! You can freeze the baked casserole in individual portions for up to 3 months. Thaw overnight in the refrigerator before reheating in the oven or microwave.
- What if I don’t have green beans? No problem at all! Refer to the “Notes & Substitutions” section. Cooked corn, peas, mixed vegetables, or even sautéed mushrooms make fantastic alternatives in this casserole.
- Do I need to pre-cook all the ingredients? Yes, all ingredients, including the turkey, stuffing, green beans, and mashed potatoes, should be fully cooked leftovers. This recipe is designed for reheating and combining already prepared holiday dishes.
Conclusion
This Ultimate Thanksgiving Leftover Casserole is truly a holiday hero. It takes the stress out of post-Thanksgiving meal planning and transforms your delicious remnants into something new and exciting. You’ll love how simple it is to prepare, and your family will adore its comforting, familiar flavors. Give your cherished holiday leftovers a fantastic second act and make this wonderful casserole. Enjoy every last bite of the season!
