Place quinoa and water in pot and bring to a boil, turn down heat and cook for 12 minutes until fluffy. Remove from heat and let rest with lid on for five minutes.
Beat egg and mix with quinoa. Place mixed quinoa crust on parchment paper or a silicone mat to make a 10-inch circle - spread evenly and bake for 15 minutes at 375 until light brown.
Saute mushrooms, onion, and spinach until done. Place to the side.
Make Nut Cheese.
To assemble, place quinoa tart on plate, spread nut cheese and place mushroom layer on top. Serve hot or cold. Slice with pizza cutter.
from Snowdon House - snowdonhouse.ca