Pour some olive oil into a saucepan and put it on a medium heat. Crumble the minced meat into the saucepan and stir until it's cooked through.
Add the tinned chopped tomatoes and stir for around 3 minutes. Add the onion, garlic and parsley and stir until it's mixed thoroughly. Keep the meat sauce on a low heat and keep stirring whenever needed.
For the white sauce:
In another saucepan, we can start on the white cheese sauce by melting butter into the pan. (You can use more or less depending on how much you intend to make.) Add the flour and stir to a paste. Add in a little milk, enough so that the paste breaks up and mixes in with the milk, stir it in initially with something like a wooden spoon and then use a whisk as it gets more mixed in. Keep whisking and eventually the mixture will start to thicken again. When this happens, add a little more milk and start whisking again.
When you're happy with the amount of sauce you have, if it's too runny you can add more flour to thicken it up, or if too thin you can add some more milk. If you're happy with the thickness, add some cheese, whisking it in thoroughly. Keep doing this and taste testing it until you're happy.
To assemble and bake:
Pour a layer of meat sauce into the bottom of a baking dish. Pour a layer of white sauce on top of the meat sauce. Place a pasta sheet on top and repeat layers until the tray is almost full. Finally, end with a layer of white sauce so that it covers the whole thing.
Sprinkle grated Parmesan all over the top. Sprinkle mozzarella on top of that.
Place in the oven and cook for around 40 minutes or until it's gone a golden brown on top.
Amounts of all ingredients are really relative to your own taste. For example, I'm a fiend for adding more white sauce for a more creamy taste. Likewise, you can add more or less cheese, or less tomato for a drier sauce.
This was really nice - quick and easy to make. It easily made 6 portions: as there were 3 of us I thought that I'd freeze half of it but an hour later we went back and scoffed the lot it was so delicious lol! Only thing I changed was I added some mxed Italian herbs, a dash of Worcester Sauce, a bit of red wine which was lying around and a stock cube to beef it up. Will make this again - but maybe for just myself!! - 04 Nov 2015