In a frying pan start by sautéing your chopped vegetables with some olive oil until softened. Then add your beef and vegetable stock followed by your minced garlic and fresh thyme and cook for few minutes. Add your minced beef and lamb and cook for 5 minutes. Add your spices, worcestershire sauce tomato paste, mustard and 1 can of chopped tomato and cook for 15 minutes until the sauce reduces by half. Add the salt and cook for 30 minutes on low heat until it fully thickens. Allow it to cool down slightly before layering.
Béchamel
In a sauce pan start by adding your salted butter once melted, Add your flour and cook on a low heat until you start smelling a nutty aroma coming from the pan. Add your milk in stages to avoid any clump forming. Once’s everything is mixed in add your spices and cook until it thickens. Once’s thickened add a block of Boursin cheese and cook until it start to boil. Once’s thickened add boiled remove from heat and allow it to cool down slightly before layering.
Layering and baking
In a big and deep baking casserole start by adding your meat mixture followed by your non cooked lasagna sheets. Then followed by meat filling , Bachamel sauce then the lasagna sheets. Repeat that order 3x times . Then finally sprinkle shredded mozzarella cheese all over the lasagna and sprinkle some Aromat , dry thyme, oregano and little bit of sea salt. Bake for 45 minutes on 180C . Enjoy