Pat the tofu dry and cut into cubes. Marinate it in the coconut aminos, then gently toss it in a bowl with the tapioca flour, nutritional yeast, salt and garlic powder.
Layer the tofu on a parchment lined baking sheet and drizzle with the olive oil. Bake for 30 minutes, flip the pieces and bake for an additional 15 minutes.
Prepare the grains
While the tofu bakes, prepare the grains.
To cook the brown rice, pour the rice into a pot with 1 tsp of olive oil on medium heat. Toss together for 1 minute to lightly toast the rice, then add 1 1/4 cups of water. Cover the pot, bring the water to a boil then reduce the heat to low, and let it simmer for about 40 minutes, until all the water is absorbed.
Remove the pot from the heat and let it sit covered for 5-10 minutes, then fluff with a fork and lightly season with salt.
To cook the quinoa, add the quinoa and 3/4 cups water or vegetable broth to a medium pot. Cover the pot and bring it to a boil, then reduce the heat and let it simmer for 15 minutes, until all the water is absorbed.
Remove from the heat and let it sit covered for 10 more minutes, then fluff with a fork and lightly season with salt.
Spicy Tahini
To prepare the tahini sauce, whisk together all ingredients in a small bowl until creamy. You can also double the recipe and add it to a blender cup to blend.
Assemble the bowls
Once the grains and tofu are ready, assemble your bowls as desired and serve with the spicy tahini sauce.