To prepare crust: beat egg with 2 t water, dill weed, Onion powder, and add 2 t bran. Allow to stand at least 10 minutes. Pour into bottom of nonstick cake pan. To prepare filling: blend tofu, egg, and ¾ cup of cooked vegetable with enough water to process. Blend for at least 3 minutes or until completely smooth. To assemble: pour tofu-egg mixture into center of the bran-egg mixture. bran will be pushed to edges of pan, encircling the filling to form crust. Place cooked Mushrooms and Onion on top of filling in a pretty circle around edges of pan. Bake at 350 °F for 20-25 minutes or until filling is set and top is browned