Vegan Sweet Potato Casserole With Pecan Crumble
A plant-based twist on the classic holiday casserole, this healthy sweet potato dish swaps dairy and eggs for non-dairy milk and plant-based binders while keeping all the warm spices and nutty richness. Roasted sweet potatoes are blended into a silky, cinnamon-spiced filling, then topped with a buttery pecan crumble made from whole and chopped pecans, coconut sugar, and maple syrup. The result is creamy underneath, crunchy on top, with natural sweetness from maple and bright warm flavors from cinnamon and pumpkin spice. Perfect for vegans and those avoiding dairy, it works equally well for anyone seeking a lighter holiday side. Serve at Thanksgiving, Christmas dinner, or any autumn gathering. This version prioritizes whole plant ingredients and skips refined sugars, making it nutrient-dense without sacrificing comfort-food appeal.
Ingredients
- 4 medium sweet potatoes, whole, about 2 1/4 pounds
- 1 tablespoon olive oil, for brushing
- 1 ¼ teaspoons kosher salt, divided
- ⅓ cup unsweetened non-dairy milk, any varietydairy milk1:13
- ¼ cup pure maple syrup, for filling
- 1 ½ tablespoons non-dairy butter or coconut oil, melteddairy butter1:13
- 2 large eggs, beatenegg substitute or flax eggvaries3Full guide →
- ½ teaspoon ground cinnamon, for filling
- ¼ teaspoon pumpkin spice, for filling
- 1 cup whole pecans, for crumblewalnuts1:1
2
- ¼ cup pecans, chopped, for crumble
- 1 tablespoon non-dairy butter or coconut oil, melted, for crumbledairy butter1:13
- ¼ cup coconut sugar, for crumble
- 2 tablespoons pure maple syrup, for crumble
- kosher salt, for crumble
Instructions
- 1
Preheat oven to 375 degrees F. Clean sweet potatoes and slice lengthwise in half.
- 2
Brush each potato half with olive oil and sprinkle with salt. Place cut side down on a sprayed baking sheet.
- 3
Roast for 45-55 minutes until tender. Remove and let cool.
- 4
In a medium bowl, combine all pecan crumble ingredients: whole pecans, chopped pecans, melted non-dairy butter, coconut sugar, maple syrup, and salt. Mix well with a fork and set aside.
- 5
Peel cooled sweet potatoes and discard skin. Place flesh in a food processor.
- 6
Blend potatoes to break down, then add non-dairy milk, melted butter, beaten eggs, maple syrup, cinnamon, pumpkin spice, and salt.
- 7
Blend 15-20 seconds until smooth and fully incorporated.
- 8
Pour sweet potato mixture into a greased 8x8 or 9x9 baking dish and spread evenly.
- 9
Top evenly with pecan crumble. Cover with foil.
- 10
Bake for 30-35 minutes covered. Remove foil and bake 10-15 minutes more.
- 11
Cool before serving hot.
Tips
Roast sweet potatoes until very tender and slightly caramelized on the cut side for deeper flavor. Don't rush this step - the drier the potatoes, the more concentrated their natural sweetness becomes in the filling.
Mix the pecan crumble with a fork rather than a processor to maintain distinct pecan pieces and texture. This creates pockets of nutty richness instead of a dense paste layer.
Cover with foil for the first bake to keep the filling moist and prevent the crumble from over-browning. Uncovering at the end allows the crumble to crisp and the filling to set properly.
Good to Know
Cover and refrigerate up to 4 days. Reheat covered at 325 degrees F for 15-20 minutes until warmed through.
Assemble completely, cover with foil, and refrigerate up to 1 day before baking. Add 5-10 minutes to covered bake time if starting from cold.
Serve warm as a side dish alongside roasted vegetables, grain bowls, or as a standalone vegetarian main. Pairs well with steamed greens or a simple green salad.
Common Mistakes
Under-roast sweet potatoes to avoid a grainy, watery filling that won't set properly during baking.
Over-blend the filling to avoid a gluey texture; stop once smooth and combined.
Skip foil coverage to avoid a dry filling and burnt crumble top.
Substitutions
FAQ
Can I use regular dairy butter and milk instead?
Yes, substitute non-dairy butter with dairy butter and non-dairy milk with whole milk or heavy cream in equal amounts. This adds dairy but increases richness. The casserole will bake similarly.
How long does this casserole keep in the refrigerator?
Covered, it keeps up to 4 days. The filling stays creamy and the crumble softens slightly. Reheat covered at 325 degrees F for 15-20 minutes. You can also freeze covered for up to 3 months; thaw overnight before reheating.
What if I don't have pumpkin spice?
Omit it or substitute with extra cinnamon, nutmeg, or ginger. Use 1/2 to 3/4 teaspoon cinnamon total for warmth. The casserole will taste good without pumpkin spice; adjust to your preference.