In a large skillet or wok, heat oil over medium heat. Add the ground turkey and cook until browned and cooked through, approximately 5 to 7 minutes. While it is cooking, break the meat apart with a spatula or a wooden spoon. Do not overcook the turkey.
Once the turkey is done, add to the skillet minced garlic, grated ginger, salt and pepper. Give it a stir to combine the flavors and season the meat.
Add to the skillet chopped onion, coleslaw mix and shredded carrot. Stir-fry for about 2 minutes.
Stir in the soy sauce and optionally the rice vinegar, then continue cooking for 2 to 3 minutes more until the coleslaw mix is tender but still fragrant. Season with more salt and pepper to taste, if necessary.
Serve immediately with sliced green onion, sesame seeds and a drizzle of sriracha if desired.