Prep the Protein: In a bowl, toss seitan with soy sauce, garlic powder, black pepper, and sesame oil. Let it marinate for 10 minutes.
Sear It Hot: Heat your wok over medium-high. Stir-fry the “pork” pieces for 4–5 minutes until golden and crisp. Remove and set aside.
Cook the Veggies: In the same pan, add a splash of sesame oil. Toss in garlic, ginger, and all vegetables. Stir-fry for 5 minutes.
Make the Sauce: In a small bowl, whisk soy sauce, rice vinegar, maple syrup, cornstarch slurry, and chili flakes.
Combine Everything: Return the “pork” to the pan. Pour in the sauce and stir until everything’s coated and glossy.
Serve with Style: Plate it over steamed rice or noodles. Garnish with sesame seeds and chopped green onions.
Optional Extra: Add crushed peanuts or lime juice for an extra zing.