Cook your base: Make rice first so it’s ready when the turkey is done. Keep it warm.
Prep the sauce: In a bowl, whisk soy sauce, brown sugar, rice vinegar, sesame oil, cornstarch, and water. Add ginger, garlic, and a pinch of red pepper flakes if using.
Set aside.
Sauté the veggies: Heat a large skillet over medium-high. Add a drizzle of oil and cook the vegetables until crisp-tender, 3–5 minutes. Season lightly with salt and pepper, then transfer to a plate.
Brown the turkey: In the same skillet, add a bit more oil if needed.
Add the ground turkey, breaking it up with a spoon. Season with salt and pepper. Cook until no longer pink and lightly browned, about 5–7 minutes.
Add aromatics: If you reserved some garlic and ginger, stir them into the turkey for the last 30–60 seconds to bloom their flavor.
Simmer with sauce: Whisk the sauce again (cornstarch settles) and pour it over the turkey.
Stir and let it bubble for 1–2 minutes until glossy and thickened.
Bring it together: Return the veggies to the skillet and toss to coat in the sauce. If it’s too thick, splash in a tablespoon of water at a time until silky.
Taste and adjust: Add more soy for salt, a pinch of sugar for sweetness, or a little vinegar for brightness. Stir in sriracha if you like heat.
Serve: Spoon the turkey teriyaki over bowls of rice.
Top with sliced green onions, sesame seeds, and a squeeze of lime if you like.