Bring the chicken broth to a boil in a saucepan over high heat. Add quinoa, reduce heat to medium-low, cover, and simmer until the quinoa is tender and the liquid has been absorbed, about 13 minutes. Stir in olive oil; fluff quinoa with a fork. Set aside to cool slightly.
Stir mint, almonds, dried cranberries, kale, carrots, celery, scallion, grape tomatoes, lemon juice, and lemon zest. Season to taste with salt and ground black pepper.