Wash the zucchini, cut off both ends, and slice thinly. Salt thoroughly to draw out the juice. Set aside.
Clean and chop the leek.
Cook the pasta in salted water until al dente. When ready, drain and set aside.
Fry the minced meat in olive oil. Season with salt and pepper. Halfway through, add the leek and garlic.
Once the meat is browned, pour in the cream and bring everything to a boil. Stir in the cooked pasta.
Press the zucchini slices, drain them, and sprinkle with a little crumbled basil.
Coat the bottom of a heatproof dish with a little olive oil. Add a third of the zucchini slices. Pour half of the minced meat mixture on top. Add another layer of zucchini slices. Then pour the rest of the minced meat mixture on top. Finally, cover with the remaining zucchini slices.
Top with sliced mozzarella cheese.
Bake in a 200°C (392°F)oven (top and bottom heat and fan) for approx. 30 minutes.