In a large bowl, combine quinoa, kale, feta cheese, apples, and almonds. Mix until thoroughly combined.
Drizzle lemon juice and olive oil over the salad, toss to coat everything, then taste and add salt and pepper as needed. Salad can be served warm or cold. Leftovers stay fresh in an airtight container in the refrigerator, up to 4 days.
Apple: I prefer a sweeter variety. Feel free to swap in any fruit you'd like in this recipe (suggestions: blueberries, oranges, peaches, strawberries, grapes, nectarines, pears). Aim for about 1 cup of fruit.
Lemon juice: fresh lemon juice preferred, but bottled is fine, too.