If you don't have precooked quinoa, you can cook it while the squash is baking. Take equal parts quinoa and liquid (water/ broth) ; wash the quinoa, bring the liquid to a boil. Add the quinoa in and bring it to a boil again, then bring the heat down to where the liquid is simmering, Close the lid on the pot and cook for 15 minutes. Allow it to rest for another 10 minutes. Then fluff with a fork and add into the recipe.