Add the onion and garlic and fry until golden. Add the tomato extract and fry for 2 minutes.
Pour in the tomatoes, water, salt, pepper, and bay leaf. Cook for 10 minutes, stirring occasionally.
Remove from the heat and mix in the basil. Mix the mashed potatoes with the cream, salt, pepper, and nutmeg.
Spread a layer of sauce on a medium baking dish and alternate layers of pasta, sauce, mozzarella cheese, and mashed potatoes, ending with the pasta and sauce.
Sprinkle with the Parmesan cheese and bake in a preheated oven for 40 minutes or until golden. Let it rest for 10 minutes before serving.
Enjoy your delicious homemade lasagna! It’s a hearty and comforting dish that’s perfect for gatherings or cozy family dinners. Adjust the seasonings to your taste and make it your own signature recipe!