Cook the Quinoa
In a medium saucepan, bring the water or vegetable broth to a boil.
Add quinoa, reduce heat to low, cover, and simmer for 15 minutes or until the quinoa is tender and water is absorbed.
Fluff with a fork and let cool to room temperature.
Prepare the Dressing
In a small mixing bowl, whisk together olive oil, apple cider vinegar, honey (or maple syrup), Dijon mustard, salt, and pepper until well combined.
Assemble the Salad
In a large mixing bowl, combine the cooled quinoa, diced apple, dried cranberries, chopped nuts, and mixed greens.
Drizzle the dressing over the salad and toss gently to coat.