Vegetarian Lasagna with Ricotta and Spinach - Italian Style

Step 1: Prepare Marrows

Cut the marrows into thin slices.

Step 2: Prepare Carrots

Peel the carrots and then slice them into thin layers using a peeler.

Step 3: Fry Marrows

Heat a pan with a little olive oil. Add the marrow slices and fry them until they are lightly browned on both sides. Remove and set aside in a bowl.

Step 4: Cook Carrots

In the same pan, add the carrot slices and cook them until they are soft. Remove and set aside in a bowl.

Step 5: Cook Spinach

Add 200g of spinach to the pan and cook until it wilts completely. Remove and set aside in a bowl.

Step 6: Chop Garlic and Onion

Chop the garlic cloves and the onion very finely.

Step 7: Prepare Tomato Sauce

Heat a pan with olive oil. Add the finely chopped onion and garlic and fry until softened. Season with salt and pepper. Add 400g of tomato polpa and simmer for about 30 minutes, stirring occasionally.

Step 8: Add Fresh Basil to Sauce

Once the tomato sauce has simmered, add some fresh basil leaves and stir them in.

Step 9: Prepare Ricotta Mixture

In a large bowl, add 400g of ricotta. Mash it lightly with a fork. Add the cooked spinach and 250g of fresh milk. Mix well until all ingredients are combined.

Step 10: Cook Lasagna Sheets

Bring a pot of water to a boil and add 1 teaspoon of salt. Cook the lasagna sheets one at a time for about 2 minutes each, or until al dente. Remove and set aside.

Step 11: Assemble Lasagna - First Layer

Add a little olive oil to the bottom of a lasagna dish. Spread a thin layer of tomato sauce. Place lasagna sheets over the sauce. Arrange a layer of fried marrow slices on top of the lasagna sheets. Sprinkle with Parmesan cheese.

Step 12: Assemble Lasagna - Second Layer

Spread a layer of the ricotta and spinach mixture over the Parmesan cheese. Add another layer of tomato sauce. Place more lasagna sheets on top.

Step 13: Assemble Lasagna - Third Layer

Arrange a layer of cooked carrot slices over the lasagna sheets. Sprinkle with Parmesan cheese. Spread another layer of the ricotta and spinach mixture. Add another layer of tomato sauce. Place more lasagna sheets on top.

Step 14: Assemble Lasagna - Fourth Layer

Arrange a layer of fried marrow slices over the lasagna sheets. Sprinkle with Parmesan cheese. Spread another layer of the ricotta and spinach mixture. Add another layer of tomato sauce. Place more lasagna sheets on top.

Step 15: Assemble Lasagna - Top Layer

Spread the remaining ricotta and spinach mixture evenly over the top layer of lasagna sheets. Sprinkle generously with Parmesan cheese. Drizzle olive oil over the top.

Step 16: Bake Lasagna

Bake the lasagna in a preheated oven at 200°C (≈390°F) (approximately 390°F) (392°F (≈200°C) (approximately 200°C)) for 40 minutes, or until golden brown and bubbly.

Step 17: Serve

Let the lasagna rest for a few minutes before slicing and serving. Garnish with fresh basil if desired. Bon appetit!

• Ensure marrows and carrots are cooked until soft to integrate well into the lasagna.

• Drain excess water from spinach after cooking to prevent a watery lasagna.

• Cook lasagna sheets one at a time to prevent sticking and ensure even cooking.

• Add other vegetables like mushrooms or bell peppers for more flavor and texture.

• Substitute ricotta with cottage cheese for a lighter option.

• Use whole wheat lasagna sheets for a healthier alternative.