If you dread the long grind of classic ragù lasagna, chef Diego Accettulli has a faster way to get a bubbling tray on the table. His tomato-forward lasagna swaps meat for a creamy béchamel and plenty of cheese. It’s lighter, wallet-friendly, and perfect when you want lasagna without the fuss.
Essential ingredients for an easy tomato and béchamel lasagna
- A large jar of tomato sauce, homemade or store-bought
- Lasagna sheets (dried or fresh)
- 100 g unsalted butter
- 100 g all-purpose flour
- About 800 ml milk
- Ground nutmeg, salt, and pepper to taste
- Two balls of fresh mozzarella
- A generous packet of grated Parmesan
Make the béchamel and heat your tomato sauce
Béchamel in five to ten minutes
- Melt butter over medium heat, then stir in flour to form a smooth roux.
- Slowly whisk in the milk, a little at a time, until the sauce thickens.
- Season with salt, pepper, and a pinch of nutmeg.
Warm the tomato sauce
- Gently heat the tomato sauce in a saucepan until it simmers.
- If it’s very thick, thin slightly with a splash of water or stock.
Layering method for even, cheesy lasagna
- Choose a rectangular ovenproof dish for neat slices.
- Spread a thin base layer of béchamel to prevent sticking.
- Place the first layer of lasagna sheets over the sauce.
- Add a layer of tomato sauce, then a few spoonfuls of béchamel.
- Sprinkle a generous amount of grated Parmesan.
- Repeat with another pasta layer, more sauce, béchamel, Parmesan and torn mozzarella.
- Finish with one last pasta layer, lots of béchamel and a thick top coat of Parmesan.
Bake, brown, and serve like a pro
- Preheat oven to 170°C (340°F).
- Bake for about 20 minutes until the top is bubbling and golden.
- Let rest for a few minutes before cutting to keep the layers intact.
- A well-rested lasagna slices cleaner and tastes better.
Quick tips, swaps, and chef notes from Instagram
- No ragù needed: tomato sauce plus béchamel keeps the dish lighter and faster.
- Use fresh pasta sheets to shorten prep time and skip pre-boiling.
- Swap mozzarella for provolone or scamorza for a smokier finish.
- To make ahead: assemble, chill, then bake 30 minutes longer from cold.
- Follow Diego Accettulli on Instagram at @diego_oggipasta for a visual guide to this recipe.
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