Preheat the oven to 180°C.
Take a big oven proof baking dish. Usually a 9"X13" is ideal for this recipe.
First of all keep 1 cup of white sauce and ½ cup vegetable tomato sauce on the side for the topping.
Smear some white sauce and the tomato sauce on the bottom of the baking tray.
Arrange the lasagna pasta sheets over it.
Add half of the vegetable tomato sauce over the sheets. Spread it out evenly.
Add half of the white sauce and spread it out.
Sprinkle some cheese over it if you want to.
Arrange lasagna pasta sheets over the sauce layers.
Add the vegetable sauce over the sheets. Spread it out evenly.
Add white sauce and spread it out.
Arrange the lasagna sheets over the sauces.
Remember the white sauce and the vegetable tomato sauce you saved, time to use that up.
Smear the white sauce over the pasta sheet.
Add the tomato sauce and spread it out.
Sprinkle grated cheese over it.
Sprinkle some chilli flakes, optional.
Cover the baking dish with aluminum foil.
Bake in the preheat oven for 20-25 minutes.
Insert a knife in the middle. If it goes in quite easily the lasagna is nearly done.
Remove the foil and bake for a further 15 minutes or till the cheese melts completely.
If you like a golden crusty cheese layer, then broil it for 3-4 minutes on high.
Remove the lasagna from the oven. Allow it to set for 10-15 minutes before serving.
Makes it easier to cut the lasagna into serving portions.