01 - Rinse quinoa or brown rice under cold water. In a saucepan, combine grains, water or broth, and salt. Bring to a boil, reduce to a simmer, cover, and cook until tender — 15 minutes for quinoa or about 35 minutes for brown rice. Fluff with a fork and set aside.
02 - In a food processor, combine chickpeas, onion, garlic, parsley, cilantro, cumin, coriander, baking powder, flour, salt, and pepper. Pulse until the mixture is coarse and well combined but not a smooth paste. Form into small balls or patties, about 2 tablespoons each.
03 - Heat olive oil in a large skillet over medium heat. Add falafel balls and cook for 3 to 4 minutes per side until golden brown and crispy. Transfer to a paper towel-lined plate to drain.
04 - In a small bowl, whisk together tahini, lemon juice, olive oil, water, minced garlic, salt, and pepper until smooth and creamy. Add more water for a thinner consistency if desired.
05 - Divide the cooked grains among four bowls. Top each with mixed greens, tomatoes, cucumber, shredded carrot, sliced red onion, and pickled vegetables if using. Arrange the falafel on top.
06 - Drizzle the tahini dressing generously over each bowl and serve immediately.