Peel and finely dice the onions and garlic. Heat 1 tablespoon of oil in a frying pan. Fry the minced meat in it until crumbly. Add half of the onions and herbs and fry briefly. Add tomato paste and sauté briefly. Add tomatoes, season with salt, pepper and sugar and simmer at low heat for about 10 minutes.
Wash and clean the spinach thoroughly. Heat 1 tablespoon of oil in a large pot, fry the remaining onion and garlic in it. Add spinach dripping wet and steam for about 3 minutes. Season with salt and pepper. Drain spinach
Season the minced sauce to taste once again. Stir the sour cream until smooth. Grease an ovenproof dish (approx. 2.5 litres capacity). Put 3 lasagne plates into the dish. Spread half of the spinach on top and add about 1/3 of the sour cream. Cover with 3 plates and add half of the chopped sauce and 1/3 of the sour cream. Continue with the lasagne, spinach and minced meat. Finish with a layer of lasagne sheets and sour cream. Sprinkle with cheese. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 30-40 minutes. Garnish with oregano
With 6 people: