Vegan Mushroom Pasta

0 Prepare pasta according to package directions.
1 Melt the olive oil and vegan butter in a large skillet, add the onion and sauté until translucent.
2 Add the garlic and mushrooms, continue to sauté until the mushrooms are cooked through.
3 Stir through the flour, reduce heat and cook for 2 minutes, continuing to stir.
4 Pour half of the soy milk in, stirring continuously to incorporate well.
5 Add remaining soy milk, increase heat and stir to combine. 
6 Bring to a boil, reduce heat and continue to stir until the sauce thickens.
7 Mix through the vegan parmesan cheese reserving ¼ to sprinkle on top when serving.
8 Season with salt and pepper to taste.
9 Add the cooked pasta to the sauce and stir though.
10 Serve immediately, topped with grated vegan cheese and chopped parsley.