Toast pecans in a dry skillet over medium-low heat for 3–5 minutes. Cool and roughly chop.
Wash and thoroughly dry the kale.
Remove thick stems and chop leaves into bite-sized pieces.
Whisk olive oil, apple cider vinegar, Dijon, maple syrup, lemon juice, garlic, salt, and pepper.
Place kale in a large salad bowl.
Add approximately 2 tablespoons vinaigrette.
Massage kale gently for 1–2 minutes.
Core and thinly slice the apples.
Add apples, cranberries, red onion, pecans, and feta.
Drizzle with additional vinaigrette.
Toss gently until evenly combined.
Taste and adjust seasoning.
Finish with reserved apple, cranberries, pecans, and feta.
Serve immediately or refrigerate briefly before serving.