Preheat your oven to 400°F and line a baking sheet with parchment paper.
Dice the purple sweet potato into half-inch cubes, toss with half the olive oil, and roast for 22 minutes until tender.
In a medium bowl, mix the ground turkey with garlic powder, dried oregano, sea salt, black pepper, and chopped fresh parsley.
Roll the turkey mixture into 1.5-inch meatballs, ensuring they are uniform for even cooking.
Heat the remaining olive oil in a non-stick skillet over medium-high heat.
Add the meatballs and sliced cremini mushrooms to the skillet, searing the meatballs until golden brown and cooked through.
Sauté the mushrooms until they release their moisture and become deeply browned.
Slice the cucumber into thin rounds for a refreshing side.
Assemble the bowl by layering the roasted purple potatoes, turkey meatballs, and mushrooms, finishing with the cool cucumber slices.