Makaronia Tou Fournou (Vegan Pastitsio)

For the béchamel

1. 90 g vegan butter
2. 80 g plain flour
3. 1 L soya milk
4. 100 g vegan cheese
5. 3 tbsp nutritional yeast
6. 1 tsp Dijon mustard
7. 1 tsp ground cinnamon

1. 1 red onion
2. 3 garlic cloves
3. 500 g mushrooms
4. 400 g extra-firm tofu
5. 1.50 tbsp balsamic vinegar
6. 1.50 tbsp soy sauce
7. 1 tbsp dried mint
8. 1 tbsp dried basil
9. 1 tsp ground cinnamon
10. 2 tbsp tomato purée
11. 1 veggie stock cube
12. 4 tbsp vegan butter
13. 500 g bucatini
14. 50 g walnuts
15. 150 g vegan cheese
16. olive oil
17. salt
18. black pepper