Preheat oven to 440℉ (225℃)
To make the crust, add whole wheat flour, chilled vegan butter, and salt in a large mixing bowl.
Use your hands to work the butter into the flour gradually. Add the water and knead until dough starts to hold together.
Press the pie dough out into the bottom and sides of the pan.
Bake the crust for 10 minutes.
While the crust bakes, saute the chopped onion and broccoli until onion is tender.
In a large bowl, add the tofu block and use a fork to mash the tofu.
Add soy yogurt, turmeric, nutritional yeast, salt and a pinch of black salt and stir all together.
Stir in sauteed onion and broccoli into the mixture and pour into crust.
Bake for 25-30 minutes.
Let cool briefly before cutting. Serve with fresh salad.