Preheat your oven to 400°F (200°C). Toss the sweet potato cubes with 1 tablespoon olive oil, salt, and pepper. Spread them on a baking sheet and roast for 25-30 minutes, flipping halfway through, until tender and slightly caramelized.
While the sweet potatoes are roasting, cook the quinoa according to package instructions. Usually, this means combining 1 cup quinoa with 2 cups water, bringing to a boil, then simmering for about 15-20 minutes until the water is absorbed.
In a large bowl, massage the chopped kale with 1 tablespoon olive oil and a pinch of salt for about 1-2 minutes. This helps soften the leaves and make them more palatable.
In a small bowl, whisk together the remaining olive oil, balsamic vinegar, and maple syrup to make the dressing.
Once the quinoa has cooled slightly, combine it with the massaged kale, roasted sweet potatoes, sliced red onion, cranberries, and pepitas in a large bowl.
Pour the dressing over the salad and toss gently to combine. Taste and adjust seasoning with salt and pepper as needed.