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1
Preheat the oven to 400u00b0F. Prepare lasagne noodles according to package directions and set aside.
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2
Heat the oil in a large deep frying pan, add the beef and cook for 10 mins, breaking into small pieces. Stir in the onion, garlic, celery root, leek, carrot and 1 tbsp of the flour and cook briefly. Stir in the tomato puree and cook for 1 min.
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3
Add the chopped tomatoes and crumbled bouillon cube and stir in 1 cup water. Bring to a boil. Stir in the anchovies and herbs.
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4
Simmer, covered, for 8-10 mins, stirring occasionally. Add sugar and season to taste.
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5
For the bechamel sauce, combine the milk and 2 cups water. Melt the butter in a saucepan, add 1/3 cup of flour and cook for 1 min, stirring constantly. Gradually add the milk mixture, stirring constantly. Bring to a boil, then reduce to a simmer and stir in most of the Parmesan. Season to taste.
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6
Spread a thin layer of the bechamel sauce in the base of a large baking dish (approx 12 x 8 x 3 inches). Layer meat sauce, lasagne noodles and bechamel, finishing with a layer of noodles and bechamel.
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7
Top with mozzarella and the remaining Parmesan. Bake for 1 hour or until cheese on top is golden brown. Serve with a green salad.