Sweet Potato Pumpkin Casserole is a comforting, flavorful side dish that brings together the natural sweetness of sweet potatoes and pumpkin with warm fall spices and a delicious crunchy pecan topping. Creamy, rich, and full of seasonal flavor, this casserole is a wonderful addition to Thanksgiving dinner, Christmas celebrations, or any cozy family meal.
This classic holiday-inspired dish combines smooth mashed sweet potatoes, earthy pumpkin puree, brown sugar, butter, and warm spices for a satisfying filling. A buttery pecan crumble adds a golden, crunchy finish that contrasts beautifully with the soft, creamy casserole underneath.
Whether you’re preparing a holiday feast or simply looking for a delicious way to enjoy autumn flavors, this Sweet Potato Pumpkin Casserole is a crowd-pleasing recipe worth adding to your menu.
Why You’ll Love This Sweet Potato Pumpkin Casserole
- Perfect for the holidays: A delicious side dish for Thanksgiving, Christmas, and autumn gatherings.
- Creamy and crunchy: The smooth sweet potato and pumpkin filling pairs beautifully with the crisp pecan topping.
- Warm seasonal flavors: Pumpkin spice and brown sugar give this casserole a cozy, comforting taste.
- Easy to prepare: Simple ingredients and straightforward steps make this recipe suitable for home cooks of all skill levels.
- Make-ahead friendly: Prepare the filling in advance to save time on busy cooking days.
- Versatile serving option: This casserole works alongside roasted meats, vegetables, and other traditional holiday dishes.
Ingredients for Sweet Potato Pumpkin Casserole
For the Casserole Filling
4 pounds sweet potatoes
Sweet potatoes provide the creamy base and natural sweetness of the casserole. Choose firm sweet potatoes without soft spots, and cook them until completely tender before mashing.
1 can (15 ounces) pure pumpkin puree
Pumpkin puree adds a smooth texture, earthy flavor, and beautiful orange color. Use pure pumpkin puree rather than pumpkin pie filling, which already contains sweeteners and spices.
1/4 cup packed brown sugar
Brown sugar adds sweetness and a subtle molasses flavor that complements the sweet potatoes and pumpkin.
3 tablespoons softened butter
Butter gives the filling a rich, smooth texture and helps bring the flavors together.
1 teaspoon kosher salt
Salt balances the sweetness and enhances the natural flavors of the vegetables.
1 teaspoon freshly ground black pepper
Black pepper adds a gentle savory note that keeps the casserole from tasting overly sweet.
2 large eggs
Eggs help bind the filling and give the casserole a more cohesive texture as it bakes.
For the Pecan Topping
1/3 cup packed brown sugar
Brown sugar creates a sweet, caramel-like flavor in the topping.
3 tablespoons all-purpose flour
Flour helps form the crumbly topping and holds the brown sugar and butter together.
1 tablespoon melted butter
Melted butter moistens the topping ingredients and helps them brown in the oven.
A pinch of salt
A small amount of salt balances the sweetness of the topping.
1/2 cup chopped pecans
Pecans provide a nutty flavor and a satisfying crunch that complements the soft casserole filling.
How to Make Sweet Potato Pumpkin Casserole
Step 1: Prepare the Oven
Preheat your oven to 350°F (175°C). Prepare a 9-by-13-inch baking dish or a 3-quart casserole dish.
Step 2: Cook the Sweet Potatoes
Scrub the sweet potatoes and cut them into manageable pieces if needed. Cook them until they are completely tender.
For a convenient method, place the sweet potatoes on a microwave-safe plate and microwave on high for approximately 15 minutes, checking for doneness and continuing in short intervals as necessary. Cooking time depends on the size of the potatoes and your microwave.
Allow the potatoes to cool slightly before handling.
Step 3: Mash the Sweet Potatoes
Transfer the cooked sweet potatoes to a large mixing bowl. Remove the skins if desired, then mash the flesh with a potato masher until mostly smooth.
A little texture is welcome, so avoid overmixing if you prefer a more rustic casserole.
Step 4: Make the Pumpkin Filling
Add the pumpkin puree, 1/4 cup brown sugar, softened butter, kosher salt, and black pepper to the mashed sweet potatoes. Mix until the ingredients are evenly combined.
Add the eggs and stir until incorporated. Avoid adding the eggs while the potatoes are extremely hot, as excessive heat can begin cooking them before the casserole reaches the oven.
Step 5: Transfer to the Baking Dish
Spoon the sweet potato and pumpkin mixture into the prepared baking dish. Spread it evenly with a spatula, smoothing the top so the pecan topping can be distributed uniformly.
Step 6: Prepare the Pecan Topping
In a separate bowl, combine the remaining 1/3 cup brown sugar, flour, melted butter, and a pinch of salt. Stir until the mixture becomes moist and crumbly.
Add the chopped pecans and mix gently to distribute them throughout the topping.
Step 7: Add the Topping
Sprinkle the pecan mixture evenly over the sweet potato and pumpkin filling. Try to cover the surface with a consistent layer so every serving gets a little crunchy topping.
Step 8: Bake the Casserole
Place the baking dish in the preheated oven and bake for approximately 25 minutes, or until the casserole is heated through and the topping is golden.
If you prefer a more toasted finish, watch the pecans closely toward the end of baking to prevent them from burning.
Step 9: Rest and Serve
Remove the casserole from the oven and let it rest for about 5 minutes before serving. This brief resting period allows the filling to settle and makes serving easier.
Serve warm alongside your favorite holiday dishes.
Tips for the Best Sweet Potato Pumpkin Casserole
Cook the sweet potatoes until very tender. Properly cooked sweet potatoes mash more easily and create a smoother filling.
Use pure pumpkin puree. Pumpkin pie filling contains added sugar and spices that can change the flavor and sweetness of the finished dish.
Mash to your preferred texture. For a smooth casserole, mash thoroughly. For a more rustic result, leave a few small pieces of sweet potato.
Add the eggs after the mixture cools slightly. This helps prevent the eggs from beginning to cook during mixing.
Keep the topping crumbly. Stir the topping ingredients just until combined. The mixture should resemble moist crumbs rather than a smooth paste.
Watch the pecans as they bake. Nuts can brown quickly, so check the casserole near the end of the cooking time.
Let the casserole rest before serving. A few minutes of resting makes it easier to scoop neat portions.
Variations to Try
Sweet Potato Pumpkin Casserole with Marshmallows
For a sweeter, traditional holiday-style version, add a layer of mini marshmallows during the final few minutes of baking. Return the dish to the oven until the marshmallows puff and turn lightly golden. Keep a close eye on them because they can brown quickly.
Maple Sweet Potato Pumpkin Casserole
Replace some of the brown sugar in the filling with pure maple syrup. Maple adds a warm, woodsy sweetness that pairs especially well with pumpkin and pecans. Because liquid sweeteners change the consistency, add them gradually.
Cinnamon Pumpkin Casserole
For more pronounced autumn flavor, add ground cinnamon and a small pinch of nutmeg to the filling. Pumpkin pie spice can also be used according to your taste.
Sweet Potato Pumpkin Casserole with Walnuts
If pecans are unavailable, chopped walnuts make a delicious substitute. They provide a slightly earthy flavor and a similar crunchy texture.
Less-Sweet Savory Version
Reduce the brown sugar in the filling and omit some or all of the sweet topping. Add a little extra black pepper and a pinch of thyme or sage for a more savory side dish.
What to Serve with Sweet Potato Pumpkin Casserole
This casserole pairs well with a variety of main dishes and holiday favorites. Its creamy texture and sweet-savory flavor complement roasted meats, vegetables, and hearty comfort foods.
Consider serving it with:
- Roast turkey and gravy
- Baked ham
- Roast chicken
- Beef pot roast
- Garlic green beans
- Roasted Brussels sprouts
- Dinner rolls
- Cranberry sauce
- Traditional holiday stuffing
For Thanksgiving or Christmas, serve it alongside other classic sides to create a colorful and satisfying holiday spread.
Can You Make Sweet Potato Pumpkin Casserole Ahead of Time?
Yes. This casserole is convenient to prepare ahead, especially when planning a large holiday meal.
Prepare the sweet potato and pumpkin filling, spread it into the baking dish, and cover it tightly. Refrigerate it until you are ready to bake. Store the pecan topping separately in an airtight container and add it just before baking to help preserve its crumbly texture.
If the casserole is cold when it goes into the oven, it may need additional baking time. Make sure the center is heated through before serving.
How to Store Leftovers
Allow the casserole to cool, then transfer leftovers to an airtight container or cover the baking dish securely. Refrigerate for up to 3 to 4 days.
To reheat a larger portion, cover the dish with foil and warm it in a 350°F oven until heated through. Remove the foil near the end if you want to refresh the topping.
Individual portions can be reheated in the microwave in short intervals, checking between each interval to avoid overheating.
For longer storage, freeze the casserole in a freezer-safe container. The texture of the filling and topping may change slightly after thawing. For the best results, freeze the filling separately from the topping when possible, and add a freshly prepared topping before reheating.
Frequently Asked Questions
Can I use canned sweet potatoes?
Yes. Canned sweet potatoes can be used as a shortcut, provided they are well drained. Since canned sweet potatoes may be softer and sweeter than fresh ones, adjust the texture and seasoning before adding the eggs.
Can I use fresh pumpkin instead of canned pumpkin puree?
Yes. Cook fresh pumpkin until tender, then mash or puree it until smooth. Drain excess liquid if necessary, because watery pumpkin can make the casserole too loose.
Do I have to peel the sweet potatoes?
Peeling is recommended for a smoother filling, but it is optional. If you prefer a rustic texture, you can leave some of the skin on, provided it has been thoroughly cleaned and softened during cooking.
How do I know when the casserole is done?
The casserole should be hot throughout, with a golden pecan topping. Since the sweet potatoes are cooked before baking, the oven time mainly heats the filling and browns the topping.
Can I make this casserole without nuts?
Absolutely. Omit the pecans for a nut-free version, keeping in mind that the topping will have a different texture. You can prepare a simple brown sugar crumble without nuts or use suitable seeds if they meet your dietary needs.
Is Sweet Potato Pumpkin Casserole a side dish or dessert?
It can be served either way, depending on how sweet you make it. With the brown sugar and pecan topping, it works beautifully as a holiday side dish and can also be enjoyed as a sweet, comforting treat.
Can I use pumpkin pie spice?
Yes. Pumpkin pie spice is a convenient substitute for individual warm spices. Add a small amount to the filling, taste the mixture before adding the eggs if possible, and adjust according to your preference.
Sweet Potato Pumpkin Casserole Recipe Card
Prep Time: 15 minutes
Cook Time: Approximately 40 minutes, plus sweet potato cooking time
Total Time: Approximately 55–60 minutes or longer, depending on the cooking method
Servings: Approximately 12–18, depending on portion size
Course: Side Dish
Cuisine: American
Method: Baking
Ingredients
For the casserole:
- 4 pounds sweet potatoes, scrubbed
- 1 can (15 ounces) pure pumpkin puree
- 1/4 cup packed brown sugar
- 3 tablespoons softened butter
- 1 teaspoon kosher salt
- 1 teaspoon freshly ground black pepper
- 2 large eggs
For the topping:
- 1/3 cup packed brown sugar
- 3 tablespoons all-purpose flour
- 1 tablespoon melted butter
- Pinch of salt
- 1/2 cup chopped pecans
Instructions
- Preheat the oven to 350°F (175°C) and prepare a 9-by-13-inch or 3-quart baking dish.
- Cook the sweet potatoes until tender. Let them cool slightly, then peel if desired and mash in a large bowl.
- Add the pumpkin puree, 1/4 cup brown sugar, softened butter, salt, and black pepper. Mix until combined.
- Add the eggs and mix until incorporated.
- Spread the filling evenly in the prepared baking dish.
- In a separate bowl, combine the remaining brown sugar, flour, melted butter, and a pinch of salt.
- Stir in the chopped pecans, then sprinkle the topping evenly over the casserole.
- Bake for approximately 25 minutes, or until heated through and golden on top.
- Let rest for about 5 minutes before serving warm.
A Cozy Holiday Favorite
Sweet Potato Pumpkin Casserole brings together everything people love about seasonal comfort food: creamy sweet potatoes, flavorful pumpkin, a hint of sweetness, and a crunchy pecan topping. It is an inviting addition to holiday meals and a wonderful way to celebrate the flavors of fall.
Prepare it for Thanksgiving, serve it at Christmas dinner, or enjoy it as a comforting side dish for a family gathering. With its simple ingredients and satisfying texture, this casserole is sure to earn a place on your seasonal menu.