Seitan can be a bit complicated, for sure. The above recipe is definitely not the simplest out there, but it is absolutely delicious. It can be made with regular ol' flour instead of "vital wheat gluten" powder, but that does add a little bit to the complexity.
That said, here's an extremely simple "2 Ingredient" recipe for seitan made with flour. Like tofu, seitan will soak up flavors well, and can be used to simulate almost any meat depending on how you prepare it.
Also, I recommend checking out Sauce Stache (website : youtube) for excellent vegan recipes (including plenty for seitan). Thee Burger Dude is another great source of vegan recipe wisdom (website : youtube).
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