Preheat your oven to 400°F and line a large baking sheet with parchment paper.
In a mixing bowl, combine the ground turkey, garlic powder, onion powder, sea salt, and black pepper until well incorporated.
Roll the turkey mixture into 8 miniature meatballs and place them on one side of the prepared baking sheet.
Toss the diced sweet potato and halved brussels sprouts with olive oil and spread them in a single layer on the other side of the sheet.
Roast for 20 to 22 minutes until the meatballs are cooked through and the vegetables are tender with browned edges.
While the meatballs roast, place the chopped kale in a bowl with lemon juice and massage with your hands for 1 minute until the leaves are softened and dark green.
Assemble your bowl by layering the cooked quinoa, massaged kale, roasted vegetables, turkey meatballs, and fresh cucumber slices.