1: Prepare 400 g fresh spinach, but don't cook them, just wash and spin-dry.
2: In a large saucepan over high heat, pour in 4 tablespoons olive oil and, when hot, add the raw spinach. Stir to "melt" the spinach, which will reduce in volume. Season with salt and set aside.
3: In the same saucepan, pour 4 tablespoons olive oil and when hot, add 150 g cooked potatoes cut into pieces or slices. Brown to taste, stirring as little as possible, then season with salt and set aside.
5: Still in the same saucepan, pour in 2 tablespoons olive oil and when hot add the chopped shallot, salt and pepper, stir and cook for 1 minute without browning.
6: Add 250 g Mascarpone and stir until melted.
7: Add 1 tablespoon tomato paste and mix well.
8: Finish by adding spinach and potatoes, stirring everything together, letting it warm up and checking the seasoning.
9: Your Lombardy spinach is ready.
Remarks
The quantities indicated, particularly those for spinach and mascarpone, are only approximate, so feel free to adapt. If the taste is a little too creamy for your taste, add a little lemon juice to the mascarpone-tomato cream.