Rehydrate TVP strips in hot stock and soy sauce for 10 minutes. Drain well, squeeze out excess liquid.
Whisk sauce ingredients together, set aside.
Heat 2 tbsp oil in wok until smoking. Add TVP strips, fry until browned and slightly crispy on edges (5-6 minutes). Remove, set aside.
Add remaining oil, fry garlic, ginger, chilli flakes, and spring onion whites for 1 minute.
Pour in sauce, let it bubble and thicken slightly.
Return TVP, toss to coat. Add spring onion greens, toss for 30 seconds.
Serve over rice, topped with sesame seeds.