Preheat the oven to 425F convection of 450F. Line a baking sheet with parchment paper.
To cook the quinoa, in a medium pot, add the quinoa and 1 ½ cups water. Bring to a boil, then reduce the heat and simmer, covered, for 12-15 minutes or until cooked through and water has evaporated.
Once it’s done cooking, remove the lid, add the kale, and fluff it into the hot quinoa with a fork. Transfer to a large bowl and spread around to cool off.
To the baking sheet, add any veggies that can stand a longer cook time (see note on veggies). Add the oil, salt, and pepper and toss to coat, then spread out evenly. Bake for 10 minutes, then add the quick cooking veggies along with a light drizzle of oil and sprinkle of salt. Use a spatula to toss together, then spread out and bake for another 5 minutes.
Meanwhile, add the herbs, cheese, oil, lemon, mustard, garlic and salt to a high-speed blender and blend on high until smooth. Add water to thin, starting with 2 tablespoons, until you have a drizzly dressing.
Transfer the roasted veggies to the large bowl along with any extra herbs (if using). You can add the cheese to the salad or save it for topping or do both.
Drizzle about ⅔ of the dressing into the bowl and toss to coat. You can thin out the remaining dressing with a bit of water to stretch it if you’d like. Serve topped with a drizzle of the remaining dressing, more cheese, nuts, olive oil, and black pepper.