Preheat oven to 350 degrees F and place unbleached muffin liners into a 12 muffin tin and spray with cooking spray (alternatively, you could use silicone muffin tin). In a large mixing bowl, whisk eggs and egg whites for 30 seconds. Add cottage cheese, mozzarella cheese, onion (garlic) powder, salt, pepper, red pepper flakes and stir to combine. Add quinoa, broccoli, parsley and green onions, and mix. Fill each muffin with egg mixture 3/4 full and sprinkle with extra mozzarella cheese on top (optional). Bake for 20 mins and then broil until golden brown crust appears (optional). Remove from the oven and let cool about 10 minutes. Serve hot or cold.