Amazing 3-Ingredient Sweet Potato Casserole You’ll Crave

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Author: Carry
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Sweet Potato Casserole (vegan or classic)

Nothing says “holiday table” quite like a bubbling dish of sweet potato casserole – that perfect balance of creamy, spiced filling and crispy, buttery topping. Whether you’re hosting vegans or traditionalists (or just want options yourself!), this recipe delivers both versions with equal comfort-food magic. I’ve been making this exact casserole for every Thanksgiving since my college days, when I first won over my skeptical in-laws with the vegan version. Turns out, nobody could tell the difference once they took that first bite!

Sweet Potato Casserole (vegan or classic) - detail 1

Why You’ll Love This Sweet Potato Casserole

• Comfort in every bite – warm spices and velvety texture feel like a hug
• Easily adapts to dietary needs without losing flavor
• Simple prep (boil, mash, bake – that’s it!)
• Always disappears first at potlucks – even picky kids go back for seconds

Ingredients for Sweet Potato Casserole

Let’s talk ingredients – the heart of this dish is simple, but every piece matters. You’ll need 3 large sweet potatoes, peeled and cubed (trust me, fresh is worth the effort). For sweetness, I use 1/4 cup packed brown sugar, but for the vegan version, swap in maple syrup – it adds a lovely depth. The creaminess comes from 1/4 cup milk (or almond milk for vegan). Don’t forget the 2 tablespoons butter – or coconut oil if you’re going plant-based. A splash of vanilla extract, a sprinkle of cinnamon, a pinch of nutmeg, and a dash of salt tie it all together. And, if you’re feeling fancy, top it with chopped pecans or marshmallows (though skip the marshmallows for vegan).

How to Make Sweet Potato Casserole

Okay, let’s get cooking! This recipe’s a breeze once you’ve got your ingredients lined up. First things first – preheat that oven to 375°F (190°C). Trust me, you don’t want to be waiting around with mashed sweet potatoes ready to go while your oven heats up. Been there, done that!

Preparing the Sweet Potatoes

Now, grab those peeled and cubed sweet potatoes – I like mine in roughly 1-inch chunks so they cook evenly. Toss them into a pot of boiling water and let them bubble away for about 15-20 minutes. You’ll know they’re ready when a fork slides right through with zero resistance. Pro tip: Don’t overcook or they’ll get watery!

Drain them well – seriously, shake that colander like you mean it – then mash with a potato masher. Want super silky texture? My secret weapon is the food processor. Just pulse until smooth (but don’t go crazy or it’ll turn gummy). Either way, you’ll end up with this gorgeous orange base that smells like autumn.

Sweet Potato Casserole (vegan or classic) - detail 2

Mixing and Baking the Casserole

Here’s where the magic happens! Add your brown sugar (or maple syrup), milk, butter (or coconut oil), vanilla, cinnamon, nutmeg, and salt right into that warm mash. Mix it all together while everything’s still warm – the heat helps melt the butter and blend flavors beautifully.

Spread your mixture into a greased baking dish (I use an 8×8 square or round pie dish). Now’s the time for toppings! Pecans? Marshmallows? Both? Go wild! Pop it in the oven for 20-25 minutes until the top gets those irresistible golden-brown spots. Your kitchen will smell like heaven, and you’ll have to fight off snackers sneaking spoonfuls before dinner!

Sweet Potato Casserole Variations

Listen, I love this recipe exactly as written—but I also love playing around with it! One of my favorite tweaks? Adding a teaspoon of freshly grated ginger to the mix for a little spicy kick that cuts through the sweetness. And if pecans aren’t your thing, try walnuts or even toasted coconut flakes for crunch. (My sister swears by crushed pretzels on top—sounds weird, but trust me, it works.)

For the vegans out there: Skip the marshmallows and try a drizzle of maple syrup or dollops of coconut whipped cream instead. Or, if you’re feeling fancy, those vegan marshmallows from the health food store actually toast up pretty nicely under the broiler. Just keep an eye on them—they go from golden to charcoal faster than you’d think!

Tips for the Best Sweet Potato Casserole

After making this casserole more times than I can count, I’ve picked up a few tricks to guarantee perfection every time. First up – taste as you go! Sweet potatoes vary in sweetness, so adjust the sugar or maple syrup to your liking before baking. (My husband likes his extra sweet – I just sneak in an extra tablespoon when he’s not looking.)

Need to prep ahead? No problem! Assemble the casserole (without toppings) up to 2 days in advance – just cover and refrigerate. Add your pecans or marshmallows right before baking. Leftovers? They reheat beautifully! Cover with foil and warm at 350°F until it’s bubbly again – about 15 minutes. And here’s my secret: the flavors actually deepen overnight, so day-two casserole might be even better than the first serving!

Serving and Storing Sweet Potato Casserole

This casserole shines brightest alongside holiday classics—think juicy roast turkey, honey-glazed ham, or even a simple roasted chicken. For vegetarian spreads, pair it with garlicky green beans and wild rice stuffing. Leftovers? (If you have any!) Store covered in the fridge for up to 3 days. When reheating, pop it back in a 350°F oven covered with foil for 15 minutes—it’ll taste just-baked. Pro tip: Cold leftovers make an amazing next-day breakfast with a dollop of yogurt!

Sweet Potato Casserole Nutritional Information

Let’s chat numbers—but keep in mind, these are estimates since your actual ingredients might differ slightly. A serving (about 1/6 of the recipe) clocks in around 220 calories, with 15g of natural sugars from the sweet potatoes and brown sugar. You’re getting 4g of fiber too—not bad for something this delicious! The vegan version cuts cholesterol to zero when using coconut oil instead of butter. Remember, toppings like extra pecans or marshmallows will bump up these numbers. I always say—holidays are for savoring, not stressing over every gram!

Sweet Potato Casserole FAQs

Can I freeze sweet potato casserole?
Absolutely! Freeze it baked or unbaked (without toppings) for up to 2 months. Thaw overnight in the fridge before reheating—add fresh toppings after thawing. The texture stays wonderfully creamy, though marshmallows won’t toast quite as nicely.

What’s the best vegan butter substitute?
I swear by coconut oil—it gives that rich buttery flavor without overpowering the sweet potatoes. Earth Balance works great too! Just avoid watery substitutes like applesauce here—you want that indulgent mouthfeel.

Why does my casserole turn out watery?
Two common culprits: overcooked sweet potatoes (they absorb too much water) or not draining them well enough. Pro tip—after draining, return them to the warm pot for a minute to evaporate excess moisture. Your mash should be thick like playdough!

Can I make this without refined sugar?
You bet! Maple syrup’s my go-to, but mashed ripe bananas or date paste work wonderfully. Start with less sweetener and adjust—natural sugars in the potatoes do a lot of heavy lifting!

Sweet Potato Casserole (vegan or classic) - detail 3

Share Your Sweet Potato Casserole Experience

I’d love to hear how your casserole turned out! Did you go classic or vegan? Add any fun twists? Drop your thoughts below—your tips might just become someone else’s new favorite way to make this dish!

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Sweet Potato Casserole (vegan or classic)

Amazing 3-Ingredient Sweet Potato Casserole You’ll Crave


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  • Author: Carry
  • Total Time: 45 minutes
  • Yield: 6 servings
  • Diet: Vegetarian

Description

A comforting and flavorful sweet potato casserole, perfect for holidays or family gatherings. Choose between a vegan or classic version.


Ingredients

  • 3 large sweet potatoes, peeled and cubed
  • 1/4 cup brown sugar (or maple syrup for vegan)
  • 1/4 cup milk (or almond milk for vegan)
  • 2 tbsp butter (or coconut oil for vegan)
  • 1 tsp vanilla extract
  • 1/2 tsp cinnamon
  • 1/4 tsp nutmeg
  • 1/4 tsp salt
  • 1/2 cup chopped pecans (optional)
  • 1/4 cup marshmallows (optional, omit for vegan)


Instructions

  1. Preheat oven to 375°F (190°C).
  2. Boil sweet potatoes until tender, about 15-20 minutes. Drain and mash.
  3. Mix mashed sweet potatoes with brown sugar, milk, butter, vanilla, cinnamon, nutmeg, and salt.
  4. Transfer mixture to a greased baking dish.
  5. Sprinkle pecans and marshmallows on top (if using).
  6. Bake for 20-25 minutes or until golden brown.
  7. Let cool slightly before serving.

Notes

  • For a smoother texture, use a food processor.
  • Adjust sweetness to taste.
  • Can be made ahead and reheated.
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

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