Wash and grate your carrot. Dice your onion to small cubes.
Fry your onion and carrots on a hot pan. Add the peeled and pressed garlic cloves. If you need to, add 2 tablespoon of water or oil to the pan.
Add in all your spices, tomato paste, and soy sauce.
Add the soy granules and diced tomatoes, stir and let simmer while you make your white sauce.
Turn your oven on to 400F
Melt your margarine in a pan. Mix the flour in the fat. Add in your plant milk gradually (½-1 cup at a time) while at the same time constantly stirring. Let the sauce thicken up every time before adding more milk. As last add the pepper and nutmeg.
Assemble your lasagna: Add ⅓ of the tomato sauce to the bottom of your lasagna pan. Spread it around evenly. Next, add 3-4 lasagna noodle sheets on top.
Add ½ of the white sauce on top of the noodles. Layer up with 3-4 noodle sheets. Add the rest of the tomato sauce on top of them.
The last layer is noodle sheets and the rest of the white sauce. Sprinkle the grated vegan cheese on top and decorate with dried oregano.
Bake at 400 F (200C) for 40-45 minutes. Let cool 10 minutes before serving the lasagna.