Roasted Pumpkin with Cheesy Walnut Crumble

Caramelized pumpkin cubes tossed with miso, brown sugar, and warm spices, topped with a savory walnut-nutritional yeast crumble that mimics umami richness. The nutmeg and cayenne create depth against sweet roasted flesh, while the crunchy toasted walnut topping adds textural contrast. Serve as a vegetable side dish at autumn dinners or holiday tables, or as a light main course with grains. The miso-vinegar glaze distinguishes this from standard roasted pumpkin, adding fermented complexity and slight tang.
Ingredients
- 8 cup pumpkin, peeled and cut into 1 1/2-inch cubes
- ¼ cup vegetable oil
- 2 tablespoon brown sugar
- 2 tablespoon mellow white misored miso1:1stronger umami
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- 1 tablespoon rice vinegar
- ½ teaspoon sea salt
- ¼ teaspoon nutmeg, freshly grated
- ¼ teaspoon cayenne pepper
- ½ cup walnuts
- 3 tablespoon nutritional yeast
- ½ teaspoon lemon juice, fresh
- ¼ teaspoon sea salt
- fresh thyme sprigs, for garnish(optional)
Instructions
- 1
Preheat oven to 400 degrees and line a baking sheet with parchment paper.
- 2
Toss pumpkin cubes with oil, brown sugar, miso, vinegar, salt, nutmeg, and cayenne.
- 3
Spread pumpkin evenly on baking sheet and roast until tender and golden, about 40 minutes.
- 4
While pumpkin roasts, spread walnuts in an even layer on a separate baking sheet.
- 5
Roast walnuts alongside pumpkin for 8 minutes until slightly toasted and fragrant.
- 6
Remove walnuts, add nutritional yeast to pan, and roast for 2 more minutes.
- 7
Transfer walnut mixture to food processor with lemon juice and sea salt; pulse to crumble texture.
- 8
Transfer roasted pumpkin to serving dish.
- 9
Sprinkle walnut crumble over pumpkin and garnish with fresh thyme sprigs.
Tips
Cut pumpkin cubes to consistent 1 1/2-inch size for even roasting; smaller pieces overcook and larger ones stay firm.
Toast walnuts separately from nutritional yeast to prevent burning; yeast scorches easily at high heat.
Make walnut crumble while pumpkin roasts to time everything for hot assembly; reheat crumble 1 minute if needed.
Good to Know
Transfer to airtight container; refrigerate up to 4 days. Crumble best served fresh but keeps separately for 2 days in sealed container.
Roast pumpkin and walnuts separately up to 1 day ahead; store in separate containers. Make crumble no more than 4 hours before serving to retain texture. Assemble and garnish just before serving.
Serve warm as side dish to roasted chicken, turkey, or grains. Pairs with fall harvest dinners, holiday meals, or as part of vegetable-forward mains.
Common Mistakes
Crowd the baking sheet to avoid steaming; spread pumpkin in single layer for caramelization.
Skip toasting walnuts and yeast separately to avoid burnt yeast flavor and uneven texture.
Add nutritional yeast before walnuts finish toasting to prevent scorching.
Substitutions
Dairy-Free Swaps
Nut-Free Alternatives
General Alternatives
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FAQ
Can I use canned pumpkin puree instead of fresh?
Not recommended. Puree will not hold shape during roasting. Use fresh pumpkin cubes or substitute with butternut squash, sweet potato, or kabocha squash cut to same size.
What if I don't have nutritional yeast?
Replace with finely grated parmesan cheese at 1:1 ratio for umami and saltiness, or use toasted breadcrumbs mixed with grated cheese. Texture will be slightly different but flavor similar.
How long does this keep refrigerated?
Roasted pumpkin keeps 4 days sealed; walnut crumble 2 days separate. Assemble fresh to maintain crumble crunch. Both freeze well 3 months; thaw separately and reassemble.