Melt butter in saucepan and fry onion and garlic until soft
Add mince and cook until browned
Add tomato paste and tomatoes. Mix in sugar, salt, pepper and herbs to taste
Add wagter and simmer, uncovered, for 20 minutes
Lasagna Assembly
Preheat oven to 200°C
Pour ¾ cup hot meat sauce into base of lightly greased large backing dish
Place a layer of lasagna sheets on base of dish and cover with ¼ of remaining meat sauce. Spread ¼ of ricotta over the meat and sprinkle ¼ of mozzarella and parmesan. Repeat until 4 layers are created finishing with mozzarella and parmesan layer
Cover with foil and cook for 30 - 35 minutes
Remove foil, reduce heat to 150°C and cook for a further 10 minutes or until cooked through (test if cooked by pricking with a fork). Let stand for 5 - 10 minutes before serving
Notes
For perfect lasagna, make sure that lasagna sheets are completely covered with the meat sauce. Important to retain a high level of moisture.