If using dried rice noodles, soak them in warm water for 10-20 minutes until pliable, then drain and set aside.
In a pan, heat canola, vegetable, or peanut oil over medium-high heat. Fry tofu strips until they are a golden brown color. Remove from the pan and set aside. Drain and filter the frying oil, and set it aside for future frying projects.
Add sesame oil to the pan and after 90 seconds when it is hot, stir in hand-torn seitan, and sauté over medium-high heat for 6 minutes until lightly browned all over.
Add the thinly sliced shallots, minced garlic, bird’s eye chilies, and lime leaves. Sauté for about 4 minutes until the ingredients become aromatic.
Add the roughly chopped Chinese broccoli and continue stir-frying for a few minutes until the broccoli is tender, yet the stems retain a crisp texture.
Prepare the stir-fry sauce by combining tamari, vegan fish sauce, palm sugar, white pepper rice vinegar, sriracha, water, and glutinous rice flour in a bowl. Ensure the flour dissolves completely by thoroughly mixing using the tines of a fork.
Pour the sauce into the pan, adding the fried tofu, the hydrated (or fresh) noodles and the chopped Thai basil. Toss the ingredients together until thoroughly coated and heated through, and the basil has wilted.
Serve the rice noodle dish in an attractive bowl garnished with Thai basil leaves, lime wedges, and thinly sliced scallions.