Cook the quinoa as per the package instructions, set aside.
Preheat the oven to 375 degrees F. Spray a 9”x13” or 3-quart baking dish with nonstick cooking spray, set aside.
In a large bowl mix together the quinoa, taco sauce, salsa, corn, black beans, green onions, cilantro, taco seasoning, and salt & pepper. Mix in 1 cup of the shredded cheese.
Pour the mixture into your prepared baking dish and sprinkle with remaining ½ cup of cheese.
Bake for 15-20 minutes, or until the quinoa mixture just starts to bubble and the cheese is melted.
Garnish with tomato, avocado, tortilla strips, sour cream, green onion, and cilantro. Serve immediately.