In a medium saucepan bring the 2 cups water and 1/2 teaspoon salt to a boil over high heat. Add quinoa and reduce heat to low. Cover and cook for 18-20 minutes, or until all water is absorbed and the seeds are tender. Allow to cool for a few minutes.
In a large bowl combine the cooked quinoa, cheddar cheese, cottage cheese, carrot, eggs, flour, green onions, Splenda, pepper, cumin, salt, and garlic powder.
Heat a frying pan and a couple teaspoons olive oil over medium-low heat. Mixture will be slightly sticky, so using a 1/4 cup measuring cup, drop mixture into pan and lightly flatten to 1/2 inch thick. Fry until golden-brown, about 4 minutes on each side. Makes approximately 10 burgers.