Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Dice the sweet potato and carrots into small half-inch cubes, and break the cauliflower and broccoli into bite-sized florets.
Toss the vegetables on the baking sheet with half of the olive oil and a pinch of sea salt, then roast for 20 to 25 minutes until tender and lightly browned.
While the vegetables are roasting, heat the remaining olive oil in a large skillet over medium-high heat.
Add the ground turkey to the skillet, breaking it apart with a wooden spoon or spatula as it cooks.
Season the turkey with the garlic powder, onion powder, dried thyme, remaining sea salt, and black pepper.
Continue cooking the turkey until it is fully browned and no longer pink, approximately 8 to 10 minutes.
Once the vegetables are finished roasting, add them directly into the skillet with the turkey and stir well to combine all the flavors.
Serve the hash warm in a bowl, optionally garnished with fresh herbs.