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  4. Lasagne alla Portofino

Lasagne alla Portofino

Recipe by Francesco Mattana on InstagramAdded 1 August 2026.
  • 1 hr 20 min
  • Serves 4
  • 13 ingredients

20 minutes to prep, 1 hour to cook. A luscious Italian lasagne that marries the bright, herbaceous flavor of homemade basil pesto with a silky béchamel sauce. Layers of tender pasta, creamy cheese, and a golden crust make this dish a comforting centerpiece for any dinner.

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Lasagne alla Portofino by Francesco Mattana, a frame from the Instagram video

Ingredients

4 servingsMetric

Pesto

Béchamel

Amounts as Francesco Mattana gives them. Metric converts supported weights and liquids, and oven temperatures; spoon measures and counts stay as written.

Method

  1. 1

    Preheat the oven to 375°F (375°F).

  2. 2

    If not already toasted, lightly toast the pine nuts in a dry skillet over medium heat for 2–3 minutes, stirring frequently, then set aside to cool.

Prepare the pesto

  1. 3

    place the basil leaves, toasted pine nuts, garlic cloves, extra‑virgin olive oil, pecorino, and Grana Padano in a food processor. Pulse until a smooth paste forms; season with a pinch of fine sea salt if desired.

Make the béchamel

  1. 4

    melt the butter in a medium saucepan over medium heat.

  1. 5

    Whisk the plain flour into the melted butter and cook for 1–2 minutes until the mixture turns a light golden color.

  2. 6

    Gradually add the whole milk, whisking continuously to prevent lumps; continue to cook, stirring, until the sauce thickens and coats the back of a spoon (about 5–7 minutes).

    Kitchen notes · Added by ReelsMeals: The béchamel thickens enough to coat the back of a spoon.

  3. 7

    Season the béchamel with nutmeg, fine sea salt, and black pepper to taste; keep the sauce warm.

  4. 8

    Spread a thin layer of béchamel on the bottom of a 23 × 33 cm (9 × 13 in) baking dish.

  5. 9

    Lay a single layer of lasagna sheets over the sauce, overlapping slightly if needed.

  6. 10

    Spread an even layer of pesto over the pasta sheets, then drizzle a thin layer of béchamel on top.

  7. 11

    Repeat the layering process (pasta, pesto, béchamel) until all ingredients are used, finishing with a top layer of béchamel.

    Kitchen notes · Added by ReelsMeals: The final layer is béchamel before the cheese topping.

  8. 12

    Sprinkle the remaining grated pecorino and Grana Padano evenly over the final béchamel layer.

  9. 13

    Bake the assembled lasagne uncovered for 35–40 minutes, or until the top is golden brown and bubbling.

    Kitchen notes · Added by ReelsMeals: The top is golden and bubbling after baking.

  10. 14

    Remove from the oven and let the lasagne rest for 10 minutes before slicing and serving.

    Kitchen notes · Added by ReelsMeals: The lasagne rests so the layers hold when sliced.

Tips while you cook

Toast pine nuts first
Lightly toast the pine nuts in a dry skillet before making the pesto and set them aside to cool.
Keep béchamel warm
After thickening, keep the béchamel sauce warm until assembling the lasagne.
Rest before serving
Let the baked lasagne rest for 10 minutes after removing from the oven to allow easier slicing.

Notes from ReelsMeals, based on this recipe's ingredients, times and method. They are not the creator's instructions.

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Francesco Mattana made this.

The recipe comes from Francesco Mattana’s Instagram reel. ReelsMeals wrote it down from the caption and the voiceover. Check the original if something looks off, and for anything about allergens.

Are you Francesco Mattana and want this changed? Email [email protected].

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Lasagna, 12 ways

Twelve creators posted their own. Most use onion, garlic and tomato.

  1. Jorge Tesch4 hr14 ingr.Only this one uses ox tail, red wine and bay leaves
  2. Micah Stewart1 hr 30 min8 ingr.Only this one uses bolognese ragout, heavy cream and chives
  3. Francesco Mattana1 hr 20 min13 ingr.Only this one uses pine nuts, pecorino cheese and grana padano
  4. I n é s Hoy Comemos Sano30 min7 ingr.Only this one uses tuna
  5. Jon García Abad45 min15 ingr.Only this one uses chicken breast and lentils
  6. kickassk81 hr 15 min18 ingr.Only this one uses sweet potato, ground turkey and mushroom
Compare all 12 side by side

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