Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large mixing bowl, toss vegan chicken strips with soy sauce, sesame oil, olive oil, garlic, ginger, salt, and pepper.
Add bell peppers, zucchini, carrot, and broccoli to the bowl and toss to coat evenly.
Spread the mixture in a single layer on the baking sheet.
Bake 20 minutes, stirring halfway through, until edges are slightly crispy and veggies tender.
Optional: Sprinkle cornstarch for thicker sauce, stir, and bake 2–3 more minutes.
Serve immediately with rice, noodles, or enjoy as a wholesome standalone meal.