Cook quinoa according to package directions. Usually, you may or may not have to rinse the quinoa; the Costco kind does not need to be rinsed. Typically, directions include bringing 1 cup of quinoa with 2 cups of water to a boil and then simmering for 15 to 20 minutes until all the water is absorbed. 1 cup of uncooked quinoa will yield 3 cups of cooked quinoa at a minimum. Saute onions and garlic in 1 teaspoon oil until translucent and tender, about 3 minutes.
Preheat oven to 350 degrees. Mix together all ingredients except pizza sauce.
Grease a mini muffin tin with cooking spray or your preferred oil. Then, spoon, one heaping tablespoon of mixture into each cup. Push down with the back of a spoon so that the top of each muffin is flat.
Bake for 15 minutes. Remove from oven and let cool for 10 minutes, then use a butter knife to run the knife around the edges and pop out the bites.
Heat the marinara sauce for dipping and then enjoy!