Sweet Potato Casserole Recipe – Love and Lemons

Without question, this is the best sweet potato casserole recipe I’ve had! A nutty, savory crumble topping covers a creamy layer of sweet potatoes.

Sweet potato casserole

Growing up, I only had sweet potatoes once a year at Thanksgiving, where they were layered into a sweet potato casserole loaded with mini marshmallows. For years, I thought I didn’t like sweet potatoes. But if you’ve been reading the blog for a while, you know that I actually love sweet potatoes (see here, here, or here). What I don’t like are marshmallows. In my opinion, sweet potatoes are sweet enough on their own, so why make them sweeter, especially in a dinner side dish?

Since sweet potatoes are one of my favorite fall veggies, I’ve always wanted to make a vegan sweet potato casserole recipe that I’d enjoy at Thanksgiving. This seemed like the perfect time to take on the challenge. And guess what? I liked it so much that I ate the leftovers for breakfast!

Whatever your opinion on traditional sweet potato casserole, you have to try this recipe. I make a simple, creamy filling that really lets the sweet potatoes shine. Then, instead of covering it with sugar, butter, and marshmallows, I sprinkle it with a savory pecan topping. The toasty, nutty topping offers a delicious crunchy contrast to the velvety sweet potato mixture, and cozy herbs make it perfect for fall. Best of all, you can find the ingredients at ALDI, so this is an affordable holiday recipe too!

Healthy sweet potato casserole recipe ingredients

Sweet Potato Casserole Recipe Ingredients

I’ve been impressed by the quality of the fresh produce at ALDI for some time (just look at these veggie fajitas!), but as I developed this recipe, their pantry staples really blew me away. I punch up the creamy sweet potato filling with their Simply Nature Organic Ground Ginger, and dried thyme adds the perfect savory touch to the nutty topping. And speaking of that topping, basics like Southern Grove Raw Walnuts, Southern Grove Pecans, and Specially Selected 100% Pure Maple Syrup are super affordable without skimping on quality.

How to make sweet potato casserole

Aside from the pantry ingredients I listed above, here’s what you’ll need to make this sweet potato casserole recipe:

  • Sweet potatoes – of course! I blend them with a splash of almond milk to make the filling nice and smooth.
  • Old fashioned oats – Along with the nuts, they give the crumble topping plenty of hearty texture.
  • Fresh rosemary and sage – If I’m cooking with sweet potatoes in the fall, chances are, I’m using rosemary and sage as well. They’re the perfect autumn flavor combination.
  • Garlic – Along with the herbs, garlic is key for giving this sweet potato casserole its delicious savory taste.

Just grab some olive oil, salt, and pepper, and you’re good to go!

Pecan topping in a food processor

How to Make Sweet Potato Casserole

This easy sweet potato casserole recipe has 4 basic steps:

1. First, roast the sweet potatoes. You can find my best tips on baking sweet potatoes here!

Sweet potato casserole recipe

2. While the sweet potatoes are baking, make the pecan topping. Pulse the nuts, oats, herbs, garlic, maple syrup, olive oil, salt, and pepper in a food processor until just combined. The mixture should clump a bit, but it should still have lots of texture.

Sweet potato mixture in a food processor

3. Then, blend up the filling. Instead of using a potato masher to mash the sweet potatoes, I use a food processor to get them super smooth. Peel the cooked sweet potatoes, and blend the soft flesh with almond milk, olive oil, ground ginger, and salt.

Sweet potatoes in a casserole dish

4. Layer and bake! Spread the creamy sweet potato mixture at the bottom of a greased casserole dish. Sprinkle it with the crumble topping, and add a few whole pecans and sage leaves for garnish. Then, bake at 425 until the topping is nicely browned and crisp, and enjoy!

Sweet potatoes in a baking dish

Sweet potato casserole with pecans

Sweet Potato Casserole

Sweet Potato Casserole Tips

  • Bake your sweet potatoes until they’re super tender. You want the filling of this casserole to be luscious and creamy, without any chunks. Make sure that a fork can easily slide through the potatoes when you take them out of the oven. This way, they’ll blend into a perfectly smooth puree.
  • Save some whole nuts for garnish! The best bites of this casserole combine creamy sweet potato with big, toasty nuts. When you blend up the crumble, reserve a few whole nuts to dot on top. You’ll thank yourself later.
  • Make it ahead. Like all great Thanksgiving recipes, this healthy sweet potato casserole is easy to prep ahead of time. You can do almost everything a day or two before your feast: blend up the sweet potato filling, pulse together the crumble topping, and store them in separate containers in the fridge. Right before serving, sprinkle the crumble over the filling, and bake! (If you bake the entire casserole ahead of time, the topping will lose its crispness in the fridge.)

Sweet potato casserole recipe

More Favorite Thanksgiving Recipes

If you’re looking for more Thanksgiving dinner ideas, check out any of these delicious recipes:

Sweet potato casserole

If you want to make your holiday season affordable and easy, head to ALDI for all the essentials! And if you’re new to Instacart, use the code ALDILemons19 to get $10 off your first three orders of $35 or more.

Sweet Potato Casserole


Total time



Recipe type: vegan side dish

  • 5 large sweet potatoes
  • 1 tablespoon Simply Nature Extra-Virgin Olive Oil, more for drizzling
  • 1¼ cup Friendly Farms Unsweetened Almondmilk, more if necessary
  • 1 teaspoon Simply Nature Organic Ground Ginger
  • ½ teaspoon Stonemill Sea Salt
  • ⅛ teaspoon Stonemill Black Pepper
  • ½ cup fresh sage leaves
  • ⅓ cup Millville Old Fashioned Oats
  • ¼ cup Southern Grove Pecans, more for garnish
  • ¼ cup Southern Grove Walnuts, more for garnish
  • ½ garlic clove
  • 2 teaspoons Specially Selected 100% Pure Maple Syrup
  • 1 tablespoon Simply Nature Extra-Virgin Olive Oil
  • ¼ teaspoon Simply Nature Organic Thyme Leaves
  • ¼ teaspoon minced fresh rosemary
  • 1 teaspoon Stonemill Sea Salt
  • ⅛ teaspoon Stonemill Black Pepper
  1. Preheat the oven to 425°F. Line a baking sheet with foil and brush an 8×11-inch baking dish, or similar, with olive oil.
  2. Use a fork to poke a few holes into the sweet potatoes. Place on the baking sheet and roast until very tender, about 60 minutes.
  3. Make the crumble topping: In a food processor, place the oats, pecans, walnuts, garlic, maple syrup, olive oil, thyme, rosemary, and salt and pulse until just combined. Remove and set aside.
  4. Scoop the cooked sweet potato flesh out of the skins and place in a food processor. Add the olive oil, almond milk, ginger, salt, and several grinds of pepper and process to combine. Spread the mixture into the baking dish.
  5. Sprinkle with the crumble topping, additional nuts, and sage. Drizzle with olive oil and bake 20 minutes or until the topping is browned and crisp.


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