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Roast Pumpkin & Spinach Lasagne

Nothing is as comforting as a rich creamy lasagne and the sweet, earthy flavours of this veggie classic are well worth the effort

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Why it works: Pumpkin and spinach match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and 200 recipes mention both. Both carry 2-methoxy-4-vinylphenol, which smells clove, smoky. The science ↓

The recipe

Serves 6
Prep25 min

Ingredients

Contains: milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.

  1. Heat the oven to 200°C (400°F). Cut the pumpkin or squash into 2 cm cubes, toss with 2 tbsp olive oil, spread on a tray and roast for 25 minutes until tender and lightly browned.

  2. Put the spinach in a large pan with a splash of water and the 1 tbsp butter. Stir over medium heat until wilted, about 3 minutes. Drain, squeeze out excess liquid, chop and season with grated nutmeg.

  3. Heat 1 tbsp olive oil in a pan over medium heat. Cook the chopped onion and celery for 8 minutes until soft, add the garlic and cook 1 minute more.

  4. Add the cherry tomatoes and the sugar to the pan, season, and simmer gently for 15 minutes until thickened. Set aside.

  5. Put the milk, the half onion, bay leaf and peppercorns in a small pan and heat gently until steaming. Remove from heat, cover and infuse for 10 minutes, then strain.

  6. Melt the 50g butter in a clean pan, stir in the flour and cook 1 minute. Gradually whisk in the strained milk and simmer 5 minutes, stirring, until thick. Stir in half the Parmesan.

  7. Grease a baking dish with extra butter. Layer lasagne sheets, tomato sauce, spinach, roasted pumpkin and white sauce, repeating until used up. Finish with white sauce and the remaining Parmesan.

  8. Bake at 180°C (350°F) for 30 to 35 minutes until golden and bubbling and the pasta is tender when pierced. Rest 5 minutes before serving.

By bbcgoodfood. Recipe from Open Recipes.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Pumpkin + spinachtop 6% of all pairs
    Aroma overlapstrong
    Mentioned together200 recipes

    Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).

  2. Onion + garlictop 1% of all pairs
    Aroma overlapstrong
    Mentioned together29,030 recipes

    Shared aroma: furaneol (caramel, strawberry).

  3. Spinach + garlictop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together2,433 recipes

    Shared aroma: 1-hexanol (resin, flower).

  4. Olive + garlictop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together23,449 recipes

    Shared aroma: linalool (floral, citrus).

  5. Spinach + celerytop 4% of all pairs
    Aroma overlapstrong
    Mentioned together616 recipes

    Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Flavor stand-ins for the nutmeg

How well each one fits the dish's main ingredients (pumpkin, olive, spinach, butter, onion, celery, garlic):

  1. Parsleybetter flavor fit
  2. Thymebetter flavor fit
  3. Cuminbetter flavor fit
  4. Nutmegthe original

Fit is the average pairing score against pumpkin, olive, spinach, butter, onion, celery, garlic. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).