1. Preheat oven to 425 degrees Fahrenheit.
2. Heat margarine in a large skillet. Sauté onions and mushrooms in margarine until onion is translucent. Add soy milk, salt, and pepper; cook for five minutes. Remove from ﬂame.
3. Blend in ﬂour and wine. Let cool.
4. Pour into pie crusts and bake, uncovered, for 20 minutes