Preheat the oven to 400°F (200°C).
Toss diced butternut squash and sweet potato with olive oil, salt, and pepper. Spread on a baking sheet and roast for 25–30 minutes, flipping halfway.
Meanwhile, rinse quinoa and cook it according to package instructions. Let it cool.
Whisk together all dressing ingredients in a small bowl until emulsified.
In a large mixing bowl, combine quinoa, roasted veggies, diced apple, cranberries, pumpkin seeds, red onion, and parsley.
Drizzle with the maple Dijon dressing and toss gently to combine.
Serve warm or at room temperature.