Bring a pot of water to boil. Cook pasta accordingly, drain and set aside.
While the pasta is cooking, prepare the sauce. Heat 2 tbsps of oil in a medium saucepan. Thinly slice your onion and mushrooms. Once the pan is hot, and the oil covers the bottom of the pan. add the onion. Saute for roughly 5 minutes until golden brown. Then add the sliced mushrooms. Toss to coat and let saute for 5 minutes, until the mushrooms have shrunk and are looking brown.
Add the garlic and the thyme. Then add the 2 tbsps of brown rice flour over the mushrooms and stir to evenly coat.
Add the red wine, miso paste, balsamic vinegar, tamari, salt and pepper and the veggie broth. Stir to incorporate all the ingredients. Bring the sauce to a low boil and then simmer (uncovered) for 10 minutes. The sauce should be thicker at this point.
Add vegan butter and the coconut milk and let simmer for another 5 minutes.
Add the pasta to the saucepan with the mushroom sauce, and toss. Evenly dish out the pasta and top with parsley. Best enjoyed fresh.