Lasagne with Red and White Sauce

• 2–3 tbsp olive oil
• 1 onion, chopped
• 2–3 cloves of garlic, minced
• 1 sprig rosemary, leaves removed and minced
• 1 tsp dried oregano
• 2–3 mid-sized carrots, chopped small or shredded
• 1–2 sticks of celery, chopped small
• 1 lb (450 g) ground beef
• 3–4 cups (0.75 -) tomato pulp or crushed tomatoes
• 7–10 basil leaves, finely chopped
• Salt
• Black pepper
• ½ cup (70 g/2.5 oz) flour
• ½ cup (8 tbsp/1 stick/125 g) butter
• 1 quart (950 ml) whole milk, cold
• Salt
• Pepper
• 4–5 sprigs fresh thyme
• Nutmeg
• 1 box (1 lb) Lasagna noodles, optionally cooked according to package directions
• 1 ½ cups (185 g) grated mozzarella

Ingredients for 8 servings (3.5 kg) · the original recipeShow how each ingredient was counted

Method

1. 1

   Bolognese sauce: Heat olive oil in large pot on medium heat.

   Stovetop
2. 2

   Add the onion and garlic, and stir. Let fry for about 2–3 minutes. Do not let the garlic burn.

   Stovetop
3. 3

   Add rosemary oregano, carrots, and celery. Stir and cook for another 2 minutes.

4. 4

   Stir in the ground beef. Cook until it is fully browned.

5. 5

   Stir in the tomato pulp, basil, salt, and pepper.

6. 6

   Cook everything for about 20 minutes, stirring occasionally. If it gets too thick, add some water.

7. 7

   Bechamel sauce: Melt the butter in a heavy-bottomed pot over medium-low heat.

   Stovetop
8. 8

   When the foam has subsided, add the flour and whisk until it is smooth and free of lumps. This is called a roux.

9. 9

   Cook the roux for 5–6 minutes on low until the floury taste has disappeared. Do not let it brown.

10. 10

    Gradually stir in the cold milk until fully incorporated, with no lumps.

11. 11

    Cook over medium heat, stirring until the mixture comes to a simmer.

    Stovetop
12. 12

    Simmer, stirring, for a few more minutes.

    Stovetop
13. 13

    Stir in the salt, pepper, thyme, and nutmeg.

14. 14

    Allow the bechamel to cool.

15. 15

    Assembly: Preheat oven to 390°F/200°C.

    Oven
16. 16

    Cover bottom of casserole dish with a bit of Bolognese sauce.

17. 17

    Cover with a layer of lasagna noodles, breaking or cutting to fit if necessary.

18. 18

    Layer on some Bolognese sauce and bechamel sauce. Keep on layering lasagna noodles, Bolognese sauce, and bechamel sauce until you reach the rim of the dish.

19. 19

    Cover with mozzarella.

20. 20

    Bake for about 30–40 minutes until the top is golden brown.

    Oven