Rinse the quinoa under cold water.
In a medium saucepan, bring 2 cups of water to a boil. Add the quinoa, reduce the heat to low, cover, and simmer for 15 minutes or until the water is absorbed. Fluff with a fork and set aside to cool.
Preheat the oven to 400°F (200°C).
Toss the cubed beets with 1 tbsp of olive oil, salt, and pepper. Spread them out on a baking sheet and roast for 25-30 minutes, or until tender. Set aside to cool.
Toss the cubed butternut squash with 1 tbsp of olive oil, salt, and pepper. Spread them out on a baking sheet and roast for 20-25 minutes, or until tender. Set aside to cool.
In a small bowl, whisk together the olive oil, lemon juice, apple cider vinegar, Dijon mustard, minced garlic, salt, and pepper.
In a large bowl, combine the cooked quinoa, roasted beets, shredded carrots, roasted butternut squash, and chopped kale.
Pour the lemon vinaigrette over the salad and toss to combine.