Soak bulghur wheat in one cup boiling water for one hour. Squeeze out excess water when time is up.
Saute the mushrooms with a splash of water until softened, adding more water if needed. Squeeze out extra water (Use the back of a spoon if too hot to touch) and reserve some of the water, may need later.
In a food processor, combine mushrooms, bulghur wheat, and rice. Pulse until well chopped, but not a paste.
In large mixing bowl, combine contents of food processor bowl with remaining ingredients. If mixture is too wet, add a bit more wheat gluten flour and/or oats. If too dry, add some of the reserved mushroom water.
Pre-heat oven to 300 degrees.
Form the mixture into 6 equal patties.
In a non-stick skillet on medium high, (lightly oiled or not), pan fry patties on both sides until lightly browned. Transfer to a baking sheet with a silicone liner. Then, bake for 20 minutes in the oven until set. I use a non-stick silicone liner placed on top of a baking sheet.
Serve on a bun with your choice of condiments. Enjoy! :)