The turkey’s been carved, the pumpkin pie’s been demolished, and your fridge now looks like a Tetris game gone wrong-packed to the brim with containers of mashed potatoes, cranberry sauce, and enough turkey to feed a small village.
So now what?
I’ll tell ya what. Take those leftovers and make a delish casserole out of them. Doesn’t matter what you have cause it’ll work.
Needed Ingredients and Preparation
The beauty of this casserole is that it’s less of a strict recipe and more of a framework.
Core Cast of Characters
Turkey: Obviously. I typically use about 3-4 cups of shredded or chopped turkey. Dark meat brings more flavor and stays moister, but white meat works too if you treat it gently.
The key here is not overcooking it again-it’s already been through the oven once.
Mashed Potatoes: These form the base layer in my setup, acting like a creamy foundation. About 2-3 cups does the trick. If your potatoes are on the stiffer side, loosen them up with a splash of milk or stock.
Stuffing: This is where texture happens. Stuffing holds its structure while soaking up flavors, giving you those little pockets of herbaceous goodness.
I use around 2-3 cups, broken into chunks.
Gravy: The liquid gold that ties everything together. You’ll need at least 1-2 cups.
If you’re running low, don’t stress-a can of cream of mushroom soup or some warmed chicken stock mixed with a bit of butter works in a pinch.
Vegetables: Whatever you’ve got. Green bean casserole (yes, casserole within a casserole-very meta), roasted Brussels sprouts, carrots, even sweet potato casserole can make an appearance. About 1-2 cups total.
The Extras That Elevate
This is where you separate a “fine” casserole from a “holy wow, I’m making this on purpose next time” casserole:
- Cheese: Shredded cheddar, Gruyère, or even Parmesan adds richness and that irresistible golden top. Not traditional Thanksgiving, but who cares?
- Cranberry Sauce: Dollops mixed in or swirled on top provide bright, tart contrast.
- Crispy Topping: Fried onions, crushed crackers, or panko breadcrumbs tossed with melted butter give you that essential crunch.
- Fresh Herbs: A handful of chopped parsley, thyme, or sage scattered at the end makes everything taste less like “leftovers” and more like an intentional dish.
I’ve made versions with:
- Cornbread instead of traditional stuffing (Southern twist that’s absolutely killer)
- Sweet potato mash as the base instead of regular potatoes
- Biscuit dough torn into pieces and scattered on top for a pot-pie vibe
- Mexican-inspired seasoning with pepper jack cheese, because why not?
Each version worked. Some were better than others, sure, but none were failures. That’s the kind of recipe safety net I appreciate.
Turkey and Stuffing Casserole
If I could only make one leftover creation for the rest of my life, this would be it.
Ingredients and Preparation
The beauty of this casserole lies in its simplicity-you’re essentially rebuilding Thanksgiving dinner in layers. Start with about 3-4 cups of leftover stuffing as your base.
Spread it across the bottom of a greased 9×13 baking dish like you’re creating a delicious foundation.
Next comes roughly 3 cups of shredded or chopped turkey. I like to shred mine because it distributes more evenly, but chunky pieces work too if that’s your jam.
Season the turkey layer with a bit of salt, pepper, and maybe some poultry seasoning if you’re feeling fancy.
Now for the magic: mix together 1 cup of turkey gravy (or chicken broth if you’re running low on gravy) with ½ cup of sour cream or cream cheese.
This creates a luscious sauce that keeps everything moist and adds serious flavor depth. Pour this mixture over the turkey layer, making sure it seeps into all the nooks and crannies.
Top the whole thing with 2 cups of leftover mashed potatoes. You can spread them smooth like frosting on a cake, or dollop them on for a more rustic look.
Either way, they’re going to get golden and gorgeous in the oven.
Sprinkle about 1 cup of shredded cheese over the potatoes-cheddar, Gruyère, or whatever melty cheese makes your heart sing.
Pop the dish into a 350°F oven for about 35-40 minutes, until everything’s heated through and the top is golden with crispy edges.
Tips for Best Results
Here’s what I’ve learned through trial and error (mostly error, if I’m being honest): don’t skip the gravy-sour cream mixture. I tried making this dry once, and it was like eating Thanksgiving-flavored cardboard.
If your mashed potatoes are super thick and cold from the fridge, warm them slightly in the microwave before spreading.
Cold, stiff potatoes are about as spreadable as concrete, and you’ll end up tearing up the layers underneath.
For extra flavor, I sometimes sauté some diced onions and celery in butter and mix them into the stuffing layer. It adds a little something special without requiring much effort.
Want to jazz it up? Throw some frozen peas or green beans into the turkey layer. Crispy fried onions on top (you know, those addictive things from green bean casserole) add amazing texture.
And if you’ve got leftover cranberry sauce, trust me-serve it on the side. That sweet-tart contrast against the savory casserole is chef’s kiss.
This casserole reheats beautifully, so it’s perfect for meal prep. I’ve even eaten it cold straight from the fridge at midnight, and it was still fantastic. Not that I’m admitting to anything.
Sweet Potato Casserole Remix
Sweet potato casserole is already basically dessert masquerading as a side dish, so why not lean into that energy and create something even more indulgent?
This remix takes your leftover sweet potatoes and transforms them into something that toes the line between breakfast and dessert-and I’m absolutely here for it.
Start with about 3-4 cups of leftover sweet potato casserole (marshmallows, streusel, and all-don’t bother separating anything).
Spread it in the bottom of a greased baking dish. If your sweet potatoes are plain, that works too-just add a drizzle of maple syrup and a dash of cinnamon.
Now here’s where it gets fun. Slice up some day-old dinner rolls, croissants, or even leftover bread-about 4-5 cups worth.
Tear them into chunks and layer them over the sweet potatoes. This creates a bread pudding-esque situation that’s absolutely divine.
Whisk together 4 eggs, 1½ cups of milk (or cream if you’re feeling particularly decadent), ¼ cup of maple syrup, 1 teaspoon of vanilla extract, and a hefty pinch of cinnamon and allspice (or nutmeg).
Pour this custard mixture over the bread, pressing down gently so everything gets soaked. Let it sit for about 10 minutes-the bread needs time to drink up all that goodness.
Top with a mixture of ½ cup melted butter, ½ cup brown sugar, and 1 cup of chopped pecans or walnuts.
This creates a candied nut topping that’s borderline sinful. Bake at 350°F for 40-45 minutes until the top is golden and crispy, and the center is set.
I serve this for breakfast the day after Thanksgiving. Drizzle with extra maple syrup or add a dollop of whipped cream if you want to really go for it.
Honestly, I’ve served this as dessert too, and nobody complained.
Cranberry Turkey Bake
This casserole is for anyone who believes cranberry sauce is underrated (hi, that’s me).
Grab a 9×13 baking dish and layer in about 4 cups of cubed or shredded turkey. Season it well with salt, pepper, and a sprinkle of dried thyme.
Now comes the star-spread about 1 cup of leftover cranberry sauce over the turkey. I know it seems like a lot, but trust the process.
If you’ve got leftover wild rice or regular rice, spread 2-3 cups over the cranberry layer.
No rice? Quinoa works great, or even leftover stuffing in a pinch. The grain layer soaks up all those juices and becomes incredibly flavorful.
Whisk together 1 cup of chicken or turkey broth with ½ cup of orange juice (fresh is great, but from concentrate works fine). Add in a tablespoon of Dijon mustard and a bit of minced garlic.
This citrusy mixture brightens everything up and keeps the casserole from being too heavy. Pour it evenly over your layers.
For the topping, I mix together panko breadcrumbs with melted butter, a bit of orange zest, and some chopped fresh herbs-parsley or sage are lovely.
Sprinkle this over the top and bake at 375°F for about 30-35 minutes.
The result? A casserole that’s simultaneously comforting and refreshing.
The cranberry sauce melts into the turkey and rice, creating pockets of sweet-tart goodness throughout. It’s like a hug and a high-five at the same time.
Here’s a pro move: if you have leftover roasted vegetables (Brussels sprouts, carrots, whatever), chop them up and toss them into the turkey layer.
More veggies never hurt anyone, and they add color and nutrition without compromising flavor.
I’ve also added dried cranberries to the breadcrumb topping for extra cranberry punch, because apparently I have no chill when it comes to cranberries.
Green Bean Casserole Makeover
If you’ve got leftover green bean casserole (fried onions and all), you’re halfway there. You’ll need about 3 cups.
If you don’t have the classic casserole but have plain green beans, that’s fine-just add a can of cream of mushroom soup and some of those addictive fried onions.
Here’s the twist: layer your green bean casserole in a baking dish, then add a layer of leftover turkey (about 2 cups, chopped or shredded).
This transforms it from a side dish into a legitimate main course. Season the turkey with a bit of garlic powder and black pepper.
Now grab any leftover mashed potatoes you have-about 2 cups-and mix them with ½ cup of shredded cheddar cheese and a couple tablespoons of milk to loosen them up.
Spread this cheesy potato mixture over the turkey layer. It’s like you’re building a shepherd’s pie, but with Thanksgiving vibes.
For the finishing touch, mix together more fried onions (I buy an extra container just for leftovers because I’m obsessed) with some grated Parmesan cheese and a drizzle of melted butter.
Sprinkle this over the potatoes and bake at 350°F for 30-35 minutes until everything’s bubbly and the top is crispy.
This casserole is like the comfort food equivalent of wrapping yourself in a warm blanket on a cold day.
It’s hearty, satisfying, and has that crispy-creamy texture contrast that makes every bite interesting.
The green beans add a nice vegetal element that keeps it from feeling too heavy, even though it’s definitely rich.
I’ve also made a version where I skip the mashed potatoes and top it with stuffing instead, which creates even more crispy surface area. Both versions are fantastic, so go with whatever you have more of.
Why Casseroles Are Perfect for Thanksgiving Leftovers
Casseroles don’t always get the respect they deserve. Some peeps think they’re outdated or boring.
When it comes to dealing with Thanksgiving leftovers, casseroles are basically the MVPs of the kitchen.
First off, they’re the ultimate one-dish wonder. You can toss pretty much everything into a single baking dish, pop it in the oven, and walk away.
No standing over the stove, no juggling multiple pots and pans. Just layer, bake, and enjoy.
They’re masters of transformation. Those components that were delicious but starting to feel repetitive? They become something entirely new when combined and baked together.
The flavors meld and marry in ways that create depth you didn’t have before. That stuffing gets crispy on top while staying soft underneath.
The turkey stays moist instead of drying out. It’s like culinary alchemy, but without the fancy degree.
Plus-and this is huge-casseroles actually improve with time. Make one today, and it’ll taste even better tomorrow after the flavors have had time to get cozy with each other.
They’re also freezer-friendly, which means you can bank a few meals for those busy weeknights when cooking from scratch sounds about as appealing as doing your taxes.
And let’s not forget the portion control situation. Instead of having seventeen containers cluttering your fridge, you’ve got one or two casserole dishes.
Your Tupperware collection will thank you, and you’ll actually be able to find the milk without excavating through layers of leftovers.