As I rummaged through my pantry on a chilly afternoon, I stumbled upon the most perfect sweet potatoes, their vibrant orange flesh just begging to be transformed. That’s when I decided to whip up my ultimate comfort food, the Sweet Potato Casserole with Pecan Streusel. This irresistible holiday side dish is not only a crowd-pleaser, but it’s also a make-ahead marvel, allowing you to impress your guests without the last-minute stress. With its creamy sweet potato layer topped by a delightful crunch of pecan streusel, this casserole beautifully balances sweetness and savory richness, making every bite a warm hug for your tastebuds. So, are you ready to fill your home with the cozy aromas of the holidays?

Why Is This Casserole So Beloved?
Comforting flavors come together in this dish, with creamy sweet potatoes swirled with warm spices and topped with crunchy pecans.
Make-Ahead magic means you can prepare it in advance to save time during holiday gatherings.
Versatile enough to suit various dietary needs—simply swap ingredients for vegan or gluten-free options.
Crowd-Pleasing appeal ensures everyone at the table will rave about this delightful side! You can even pair it with other favorites for a truly memorable feast, like roasted turkey or a fresh salad.
Tasteful presentation of the vibrant topping makes it a stunning addition to your holiday spread. Prepare to impress your guests with this Sweet Potato Casserole with Pecan Streusel!
Sweet Potato Casserole Ingredients
For the Casserole
• Sweet Potatoes – Cut into 1-inch cubes for even roasting and a creamy texture in the final dish.
• Unsalted Butter – Adds richness; for a dairy-free option, feel free to substitute with margarine.
• Milk – Ensures creaminess in the mash; almond or oat milk works well for a dairy-free version.
• Brown Sugar – Provides delightful sweetness; maple syrup can be an excellent substitute.
• Large Eggs – Binds the mash together; a flaxseed meal and water mixture can be used for a vegan alternative.
• Vanilla Extract – Enhances the overall flavor; almond extract adds a delightful twist.
• Ground Cinnamon – Infuses warmth and spice; nutmeg is a nice alternative for a different flavor profile.
• Salt – Balances sweetness and enriches the dish’s flavors.
For the Pecan Streusel Topping
• All-Purpose Flour – Creates that perfect crunchy topping; switch to gluten-free flour for a gluten-free version.
• Chopped Pecans – Adds a wonderful crunch; walnuts can be used instead or omitted for a nut-free adaptation.
• Additional Brown Sugar – Enhances the sweet topping; feel free to adjust according to taste preferences.
• Melted Butter – Brings it all together; you can also use coconut oil for a dairy-free alternative.
This Sweet Potato Casserole with Pecan Streusel is truly approachable and adaptable, ready to elevate your holiday dining experience!
Step‑by‑Step Instructions for Sweet Potato Casserole with Pecan Streusel
Step 1: Preheat and Roast
Preheat your oven to 400°F (200°C). While the oven heats, arrange the cut sweet potatoes on a foil-lined baking sheet, spreading them out evenly. Roast for 45–50 minutes until the sweet potatoes are tender and easily pierced with a fork, allowing their natural sweetness to deepen.
Step 2: Mash the Sweet Potatoes
Once roasted, remove the sweet potatoes from the oven and drain any excess liquid. In a large mixing bowl, combine the tender sweet potatoes with melted butter, milk, brown sugar, eggs, vanilla extract, ground cinnamon, and salt. Mash everything together until smooth and creamy, creating a delightful base for your Sweet Potato Casserole.
Step 3: Prepare the Baking Dish
Transform your creamy sweet potato mixture into a baking vessel! Grease a 9×13-inch baking dish with a bit of butter or cooking spray to prevent sticking. Spoon the mashed sweet potato mixture into the dish, spreading it evenly and smoothing the top to create an inviting layer for your pecan streusel.
Step 4: Make the Pecans Topping
In a separate bowl, combine all-purpose flour, brown sugar, melted butter, and chopped pecans. Mix these ingredients together until crumbly; this will create a deliciously crunchy topping for your Sweet Potato Casserole. The texture should resemble coarse crumbs, promising a satisfying crunch when baked.
Step 5: Assemble and Bake
Evenly sprinkle the pecan streusel topping over the smooth layer of sweet potatoes, ensuring it covers the base entirely. Place your assembled casserole in the preheated oven, baking at 350°F (175°C) for 20–25 minutes. Look for the topping to turn golden brown and the edges to bubble invitingly.
Step 6: Cool Before Serving
Once baked to perfection, remove your Sweet Potato Casserole with Pecan Streusel from the oven and let it cool uncovered for about 15 minutes. This resting time allows the flavors to meld beautifully and makes serving easier. A warm casserole awaits, ready to be enjoyed at your holiday gathering!

How to Store and Freeze Sweet Potato Casserole
Fridge: Store leftover Sweet Potato Casserole in an airtight container for up to 3–4 days. Ensure it cools completely before covering to maintain texture.
Freezer: Freeze the casserole (unbaked or baked) for up to 2 months. Wrap tightly in plastic wrap followed by aluminum foil to prevent freezer burn.
Thawing: Thaw frozen casserole in the fridge overnight before reheating to preserve flavor and texture.
Reheating: When ready to enjoy, reheat in a 350°F (175°C) oven until bubbling and heated through, about 25–30 minutes.
Make Ahead Options
These Sweet Potato Casserole with Pecan Streusel are perfect for busy home cooks looking to save time during the holidays! You can prepare the creamy sweet potato mash and the pecan streusel topping up to 24 hours in advance. Simply make the mash as directed, then transfer it to your greased baking dish and cover it tightly with plastic wrap or foil before refrigerating. For the streusel, mix all the ingredients separately and store it in an airtight container in the fridge. When you’re ready to serve, just sprinkle the streusel on top and bake directly from the refrigerator, adding an extra 5–10 minutes to the baking time. This way, you’ll enjoy the same deliciously warm and comforting flavors without the last-minute stress!
Sweet Potato Casserole with Pecan Streusel Variations
Feel free to get creative with this delightful dish and tailor it to your taste buds!
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Vegan Option: Replace eggs with a flaxseed meal and water mixture; use almond or oat milk for creaminess.
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Gluten-Free: Substitute all-purpose flour with a 1:1 gluten-free flour blend for the streusel topping while retaining that crunchy goodness.
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Nut-Free: Omit the pecans and replace with sunflower seeds for crunch or leave it out entirely for a simpler, creamy experience.
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Maple Twist: Swap brown sugar for maple syrup in both the sweet potato mixture and streusel topping for a deeper flavor.
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Spicy Kick: Add a pinch of cayenne pepper or some diced jalapeños to the sweet potato mash for a surprising heat that compliments the sweetness!
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Fruity Addition: Mix in dried cranberries or raisins for a burst of sweetness that pairs beautifully with the pecan streusel.
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Citrus Zest: Incorporate a teaspoon of orange or lemon zest into the sweet potato mash for a refreshing brightness.
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Cheesy Layer: For a savory twist, sprinkle some shredded cheddar cheese on top of the sweet potato layer before adding the pecan streusel, creating a delicious contrast of flavors.
With these variations, your Sweet Potato Casserole can become the star of the show, perfectly complementing your holiday feasts alongside dishes like glazed ham or a brisket. Enjoy these tasty twists and make this recipe uniquely yours!
Expert Tips for Sweet Potato Casserole
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Even Cuts: Cut your sweet potatoes into uniform 1-inch cubes before roasting to ensure they cook evenly and reach the ideal creamy texture in the Sweet Potato Casserole.
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Cool Before Covering: Allow your casserole to cool for a few minutes before covering it with foil, preventing a soggy pecan streusel topping.
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Storage Smartly: Store leftovers in an airtight container, and always reheat to an internal temperature of 165°F (74°C) for safe consumption without losing quality.
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Customize Sweetness: If you prefer less sweetness, reduce the brown sugar in both the mash and pecan streusel, keeping the dish balanced and delightful.
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For the Best Texture: Mix your streusel until it’s crumbly but not too fine; this will create the perfect contrast of crunch against the creamy sweet potato base.
What to Serve with Sweet Potato Casserole with Pecan Streusel
Embrace the holiday spirit by creating a delightful dining experience that perfectly complements the warmth of this creamy, nutty casserole.
- Glazed Ham: The sweetness of the ham pairs wonderfully with the sweet potato, making for a harmonious and festive meal.
- Roasted Turkey: A classic holiday choice, turkey’s savory notes create a balanced plate alongside the sweet casserole.
- Steamed Green Beans: Fresh and crisp, these green beans provide a pop of color and contrasting texture to the creamy dish.
- Cranberry Sauce: The tartness of cranberry sauce beautifully cuts through the richness of the sweet potatoes, enhancing every bite.
- Caesar Salad: A Caesar salad adds a refreshing crunch and zest that brightens the table, offering a lovely contrast to the casserole’s warmth.
- Rolls or Biscuits: Soft, buttery rolls or biscuits complement the meal, perfect for soaking up the casserole’s deliciousness without overwhelming flavors.
- Apple Cider: A warm glass of spiced apple cider can elevate the experience, adding a cozy autumnal feel to your holiday feast.
- Pumpkin Pie: For dessert, indulge in pumpkin pie. It reflects the same seasonal flavors while adding a sweet ending to your meal.
- Red Wine: A light-bodied red or a fruity rosé can complement the casserole’s flavors, enhancing the overall dining experience.

Sweet Potato Casserole with Pecan Streusel Recipe FAQs
How do I know if my sweet potatoes are ripe?
Absolutely! When selecting sweet potatoes, look for ones that are firm and free from dark spots or blemishes. The skin should be smooth, and ideally, they’ll have a vibrant orange or purple color, indicating they’re sweet and ready for your casserole.
How should I store leftover Sweet Potato Casserole?
To keep your casserole fresh, store it in an airtight container in the refrigerator. It will remain delicious for up to 3–4 days. Make sure to cool the casserole completely before transferring it to the container to preserve its perfect texture.
Can I freeze Sweet Potato Casserole?
Yes, you can! To freeze, you can wrap the casserole tightly in plastic wrap and then again in aluminum foil to protect against freezer burn. This method allows it to be stored for up to 2 months. If you prefer, you can freeze it unbaked and pop it directly into the oven when you’re ready.
How do I reheat frozen casserole?
When you’re ready to enjoy your frozen Sweet Potato Casserole, the best approach is to first thaw it in the fridge overnight. Once thawed, preheat your oven to 350°F (175°C) and bake it for about 25–30 minutes until bubbling and heated through. For a freshly baked crust, you can uncover it during the last few minutes.
Are there any common mistakes to avoid when making this casserole?
Very! One common pitfall is not cutting the sweet potatoes into uniform 1-inch cubes; this can lead to uneven cooking. Also, for the perfect topping, make sure your streusel mixture is crumbly but not too fine—this will ensure that delightful crunch against the creamy layer below.
Can I make this dish nut-free?
Absolutely! If you need a nut-free version of the Sweet Potato Casserole with Pecan Streusel, simply omit the pecans from the topping or replace them with seeds such as sunflower seeds to maintain that crunchy texture while keeping everyone at the table happy!

Sweet Potato Casserole with Pecan Streusel: A Cozy Holiday Classic
Ingredients
Equipment
Method
- Preheat your oven to 400°F (200°C). Arrange the cut sweet potatoes on a foil-lined baking sheet and roast for 45–50 minutes until tender.
- Once roasted, combine sweet potatoes with melted butter, milk, brown sugar, eggs, vanilla extract, ground cinnamon, and salt in a bowl and mash until smooth.
- Grease a 9×13-inch baking dish. Spoon the mashed sweet potato mixture into the dish, spreading it evenly.
- In a bowl, mix all-purpose flour, brown sugar, melted butter, and chopped pecans until crumbly for the topping.
- Sprinkle the pecan streusel topping over the sweet potato layer and bake at 350°F (175°C) for 20–25 minutes until golden brown.
- Let the casserole cool for about 15 minutes before serving.

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