Roasted Pumpkin with Cheesy Walnut Crumble

Prep: 15 minCook: 40 min6 servingsmediumDeep South
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

6 servings
  • 8 cup pumpkin, peeled and cut into 1 1/2-inch cubes
  • ¼ cup vegetable oil
    olive oil1:1neutral oil

    high confidence

    Full guide →
  • 2 tablespoon brown sugar
    maple syrup3/4 tablespoon per 2 tablespoonsweetener

    medium confidence

    Full guide →
  • 2 tablespoon mellow white miso
    red miso1:1stronger umami

    medium confidence

  • 1 tablespoon rice vinegar
  • ½ teaspoon sea salt
  • ¼ teaspoon nutmeg, freshly grated
  • ¼ teaspoon cayenne pepper
  • ½ cup walnuts
    pecans1:1tree nut

    high confidence

    Full guide →
  • 3 tablespoon nutritional yeast
    finely grated parmesan1:1dairyadds dairy

    medium confidence

    Full guide →
  • ½ teaspoon lemon juice, fresh
  • ¼ teaspoon sea salt
  • fresh thyme sprigs, for garnish(optional)
    fresh sagesame amountherb garnish

    high confidence

    Full guide →

Instructions

  1. 1

    Preheat oven to 400 degrees and line a baking sheet with parchment paper.

  2. 2

    Toss pumpkin cubes with oil, brown sugar, miso, vinegar, salt, nutmeg, and cayenne.

  3. 3

    Spread pumpkin evenly on baking sheet and roast until tender and golden, about 40 minutes.

  4. 4

    While pumpkin roasts, spread walnuts in an even layer on a separate baking sheet.

  5. 5

    Roast walnuts alongside pumpkin for 8 minutes until slightly toasted and fragrant.

  6. 6

    Remove walnuts, add nutritional yeast to pan, and roast for 2 more minutes.

  7. 7

    Transfer walnut mixture to food processor with lemon juice and sea salt; pulse to crumble texture.

  8. 8

    Transfer roasted pumpkin to serving dish.

  9. 9

    Sprinkle walnut crumble over pumpkin and garnish with fresh thyme sprigs.

Tips

Tip 1

Cut pumpkin cubes to consistent 1 1/2-inch size for even roasting; smaller pieces overcook and larger ones stay firm.

Tip 2

Toast walnuts separately from nutritional yeast to prevent burning; yeast scorches easily at high heat.

Tip 3

Make walnut crumble while pumpkin roasts to time everything for hot assembly; reheat crumble 1 minute if needed.

Good to Know

Storage

Transfer to airtight container; refrigerate up to 4 days. Crumble best served fresh but keeps separately for 2 days in sealed container.

Make Ahead

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 With

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.

See pairing guide →

Common Mistakes

Watch

Crowd the baking sheet to avoid steaming; spread pumpkin in single layer for caramelization.

Watch

Skip toasting walnuts and yeast separately to avoid burnt yeast flavor and uneven texture.

Watch

Add nutritional yeast before walnuts finish toasting to prevent scorching.

Substitutions

Dairy-Free Swaps

nutritional yeast
finely grated parmesan1:1dairyadds dairy

medium confidence

Full guide →

Nut-Free Alternatives

walnuts
sunflower seeds1:1seedtree_nuts-free

high confidence

Full guide →

General Alternatives

vegetable oil
olive oil1:1neutral oil

high confidence

Full guide →
mellow white miso
red miso1:1stronger umami

medium confidence

brown sugar
maple syrup3/4 tablespoon per 2 tablespoonsweetener

medium confidence

Full guide →
walnuts
pecans1:1tree nut

high confidence

Full guide →
fresh thyme
fresh sagesame amountherb garnish

high confidence

Full guide →
Find more substitutions →

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.