Mix flour, salt, pepper, garlic powder, onion powder, thyme, oregano, basil, and paprika in a bowl.
Heat olive oil in a large skillet over medium heat.
Add mushrooms and onions, cook until softened.
Add garlic, cook for another minute.
Stir in the flour mixture, cook for 2 minutes.
Add vegetable broth and Marsala wine, bring to a simmer.
Stir in coconut milk, cook until sauce thickens.
Garnish with fresh parsley before serving.