Vegan Wild Mushroom and Cavolo Nero Lasagne with Walnut Rocket Pesto

Name: Vegan Wild Mushroom and Cavolo Nero Lasagne with Walnut Rocket Pesto
Prep time: 30 min
Cook time: 2 h
Total time: 2 h
Yield: 8 portions
Ingredients: 2 garlic cloves; 150 g onions; 10 g olive oil; 1000 g passata; 20 g fresh basil leaves; ½ tsp fine sea salt; ½ tsp ground black pepper; 150 g cavolo nero; 400 g fresh wild mushrooms; 150 g olive oil; 150 g rocket leaves; 55 g walnuts; 15 g lemon juice; 1 garlic clove; ½ tsp fine sea salt; 1 pinch ground black pepper; 1 pinch dried chilli flakes; 500 g soya milk; 50 g plain flour; 50 g vegan margarine; ½ tsp fine sea salt; ¼ tsp ground nutmeg; ½ tsp Dijon mustard; 9 dried lasagne pasta sheets