Chicken Style Seitan & Marinade: Add the silken tofu, nutritional yeast, vegan chicken broth, salt, onion powder, garlic powder, sage, thyme, and black pepper to a food processor. Blend until smooth.
In a medium sized bowl, add the vital wheat gluten. Add the tofu mixture to the bowl with the vital wheat gluten and combine with a wooden spoon until just combined. Knead the mixture with clean hands for about 1-2 minutes until it comes together.
Bring a large pot of vegan chicken broth to a boil. Pinch off bite-sized chunks of dough and place in boiling vegan chicken broth. Bring to a boil and then reduce to a simmer for 30 minutes. Drain and set aside.
In a large bowl, whisk together all the seitan marinade ingredients. Once the chicken-style seitan is cool, toss evenly in marinade.
Cover and refrigerate minimum 1 hour but overnight is preferred.
Tzatziki Sauce & Flatbread: If making flatbread from scratch, complete that first or you'll need to multitask a bit towards the end. After the 1 hour rise, the flatbread cooks very fast. Make the tzatziki sauce as well and store in the fridge.
If serving rice, start that now.
Pre-heat oven to 400F. Next, chop the red peppers and red onion. Line a baking tray with parchment paper and toss with oil, dill, and salt. Bake for 20 minutes. Toss. Bake for 5-10 more minutes until the vegetables are soft and some parts are charred.
While the peppers are baking, slice the zucchini. Set aside.
Place 4 pieces of marinaded seitan on wooden skewers.
Heat a large pan on medium-high heat and add 1 tablespoon of oil. Carefully place the seitan souvlaki on the pan and cook on each side until golden and charred. About 10-15 minutes overall.
Once done, transfer seitan to a baking tray and place in oven. When the peppers are done a few minutes later, turn oven to the lowest heat to keep warm.
In the same pan you cooked the seitan, add the oil and zucchini rounds. Sprinkle with salt. Cook for 4-5 minutes or until golden brown. Flip. Cook another 3-4 minutes. Remove from heat.
Serve Seitan Souvlaki, Rice Pilaf, Roasted Peppers & Onion, Zucchini topped with Tzatziki Sauce and scoop up all that delicious food with homemade flatbread. Enjoy!