In a large skillet heat oil over medium-high. Add onion and garlic and sauté until softened, 6-8 minutes. Stir in cumin, coriander, oregano, salt, and cayenne. Add ground turkey and cook, breaking up meat with a spoon, until cooked through and starting to brown, about 10 minutes.
In a medium bowl whisk together lime juice, oil, Dijon, garlic, salt, and pepper. Toss dressing with kale, carrot, and green onion to make your kale slaw.
In a large, dry skillet over medium, heat tortillas 1 at a time, flipping once, until heated through and pliable. Transfer to a plate and warm remaining tortillas, stacking them on top of each other.
Add seasoned turkey to tortillas. Top with kale slaw and serve your healthy, ground turkey tacos with extra dressing on the side.