Rinse 1 cup of quinoa under cold water using a fine mesh sieve to remove its natural coating, which can taste bitter.
In a medium saucepan, combine the rinsed quinoa with 2 cups of water. Bring to a boil over medium-high heat, then reduce to a simmer, cover, and cook for about 15 minutes until the quinoa is tender and water is absorbed.
Remove from heat and let it sit, covered, for 5 minutes. Fluff with a fork and allow to cool to room temperature.
While the quinoa is cooking and cooling, dice 1 cup of crisp apples into bite-sized pieces. Toss with a splash of lemon juice if desired to prevent browning.
Rinse 1 cup fresh cranberries or measure 1/2 cup dried cranberries. Chop 1/2 cup walnuts and 1/4 cup fresh parsley. Slice 1/4 cup green onions thinly.
In a small bowl, whisk together 1/4 cup olive oil, 2 tablespoons apple cider vinegar, and 1 tablespoon honey. Season with salt and pepper to taste and whisk until well combined and slightly emulsified.
In a large mixing bowl, combine cooled quinoa, diced apples, cranberries, chopped walnuts, parsley, and green onions.
Pour the dressing over the salad and toss gently but thoroughly to coat all ingredients evenly.
Serve immediately for the freshest texture, or refrigerate for at least 30 minutes to allow flavors to meld beautifully.
This salad holds up well for up to 3 days in the fridge, making it a fantastic make-ahead option.