Preheat the oven to 400°F.
Combine the beans, mushrooms, garlic, nutritional yeast, poultry seasoning, bouillon, coconut aminos, water, and oil in a food processor until the blended mixture is pretty smooth. A few lumps are okay.
Add the vital wheat gluten and pulse until a rough dough forms.
Do not knead in the food processor. Instead, turn the dough onto a lightly floured surface and knead for about 5 minutes.
Form the dough into a loaf shape, about 8 and 1/2 inches long.
Lay a 24-inch piece of foil onto your work surface and place a smaller sheet of parchment paper on top of it.
Place the dough log on the short side of the parchment paper and foil, roll it up into a tight log, and twist the ends.
Place on a baking sheet and bake for 35 minutes. Then, flip the roast and bake for 35 minutes more.
Remove the roast from the oven and leave it in the foil to rest for 30 minutes to continue cooking.
Unwrap the roast. Slice to serve. Enjoy!