Heat 1 tablespoon of olive oil or sesame oil in a large skillet or wok over medium-high heat.
- Add the ground turkey to the skillet and cook, breaking it up with a spatula, until browned and cooked through, about 5-7 minutes. Season with salt and pepper. Remove the cooked turkey from the skillet and set it aside.
- In the same skillet, add the remaining tablespoon of oil. Add the green beans and cook for 3-4 minutes, stirring occasionally, until they start to soften.
- Add the garlic and ginger to the skillet and cook for another 1-2 minutes until fragrant.
- Stir in the kale and cook for 2-3 minutes, until it wilts and becomes tender.
- Return the cooked turkey to the skillet with the vegetables.
- In a small bowl, whisk together the soy sauce, honey, rice vinegar, sesame oil (if using), and red pepper flakes (if using).
- Pour the sauce over the turkey and vegetables and toss to coat evenly. Let it cook for another 2-3 minutes, allowing the flavors to combine.
- Taste and adjust seasoning with additional salt, pepper, or more soy sauce as needed.
- Serve the stir-fry over cooked rice or cauliflower rice and garnish with sesame seeds, if desired.