This lasagna is a symphony of flavours, a comforting classic that's perfect for sharing. Packed with protein and bursting with deliciousness, it's a guaranteed crowd-pleaser. Plus, it's a great way to sneak in some veggies!
Finely chop the onion and mince the garlic.
In a large pan, brown the sausage and ground beef over medium heat. Drain off any excess fat.
Add the chopped onion and minced garlic to the pan and cook until softened.
Stir in the crushed tomatoes, tomato paste, white sugar, parsley, basil, oregano, salt, and black pepper. Simmer for 15 minutes, stirring occasionally.
While the sauce simmers, cook the lasagna noodles according to package directions. Drain and rinse with cold water.
In a bowl, combine the ricotta cheese, egg, and half of the Parmesan cheese.
Preheat the oven to 190°C (170°C fan/Gas Mark 5).
Layer the lasagna: Spread a thin layer of sauce in the bottom of a baking dish. Top with a layer of noodles, a layer of the ricotta mixture, a layer of mozzarella cheese, and a sprinkle of the remaining Parmesan cheese. Repeat layers, ending with sauce, mozzarella cheese, and Parmesan cheese.
Bake in the preheated oven for 25 minutes, or until bubbly and the cheese is melted and lightly browned.
Let the lasagna stand for 10 minutes before serving.
For extra flavour, add a bay leaf to the sauce while it simmers. Remember to remove it before layering the lasagna.