Place the quinoa, chopped onion, and two cups of water in a small pot. Bring to a boil, then reduce heat to low and cover the pan. Cook for about 15-20 minutes until the little ring separates from the quinoa. Fluff with a fork.
Add the olive oil, Daiya cheese, and coconut milk to the pot. Cook over medium low heat until the cheese is melted.
If you are using frozen green beans, put them in a colander and run them under water until they thaw out somewhat. Drain and add to the quinoa. Stir and continue to cook until everything is heated through.