Cook the quinoa and set aside one cup.
Sauté the mushrooms until tender and browned.
Add all ingredients to a large bowl food processor and process until mostly chopped, and incorporated, and the mix resembles "hamburger."
Divide into four pieces (or more or less, depending on how large you want your burgers), and shape into patties.
Sauté patties in a pan with optional oil and serve on buns with your choice of condiments.