Prep the sauce. In a small bowl, whisk soy sauce, oyster sauce, rice vinegar, sesame oil, and chili-garlic sauce. If you like a thicker glaze, stir in the cornstarch slurry.
Set aside.
Heat the pan. Place a large skillet or wok over medium-high heat. Add 1 tablespoon oil and swirl to coat.
Brown the turkey. Add ground turkey, season lightly with salt and pepper, and break it up with a spatula. Cook until no longer pink and lightly browned in spots, about 5–7 minutes.
Transfer to a plate and set aside.
Sauté aromatics. Add the remaining 1 tablespoon oil to the pan. Add garlic, ginger, and the white parts of the green onions. Stir for 30–45 seconds until fragrant.
Cook the veggies. Add bell pepper, broccoli, carrot, zucchini, and snap peas.
Stir-fry for 4–6 minutes, until crisp-tender. Don’t overcook—some bite is good.
Combine and sauce. Return the turkey to the pan. Pour in the sauce and toss to coat.
Cook 1–2 minutes until the sauce slightly thickens and everything is hot.
Finish and serve. Taste and adjust with extra soy sauce, vinegar, or chili for balance. Sprinkle with sesame seeds and the green onion tops. Serve over rice, cauliflower rice, or noodles.