Bring the water to a boil in a saucepan with a pinch of salt. Rinse the quinoa through a fine sieve, then add it to the boiling water. Reduce the heat to low, cover the pot, and cook the quinoa for 10 minutes. Add the frozen edamame and the kale to the pot and continue to cook for another 5 minutes. Remove the mixture from heat and set aside.
In the meantime, steam or microwave the squash till cooked through (about 5 minutes on high in the microwave, or 10 minutes of steaming). This can be done up to 1-3 days in advance.
To make the sauce, place the milk, hemp seeds, nutritional yeast, mustard, turmeric, lemon juice, salt and pepper in a high speed blender and blend till smooth and creamy.
Add the squash to the cooked quinoa, edamame, and kale. Pour in the sauce. Bring the pot back to a simmer and cook for about 3 more minutes. Taste the mixture and add extra salt, pepper, lemon, and nutritional yeast as desired. Serve.