01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss the sweet potatoes and red onion with 1 tablespoon olive oil, half the paprika, cumin, coriander, salt, and pepper. Spread on one side of the baking sheet.
03 - Pat the chickpeas dry with a paper towel. Toss with remaining olive oil, paprika, cumin, coriander, salt, and pepper. Spread on the other side of the baking sheet.
04 - Roast for 25 to 30 minutes, stirring halfway, until the sweet potatoes are tender and the chickpeas are golden and crispy.
05 - Meanwhile, whisk together all tahini dressing ingredients in a small bowl, adding water as needed until smooth and pourable.
06 - To assemble, divide the greens among 4 bowls. Top each with roasted sweet potatoes, chickpeas, red onion, and sliced avocado.
07 - Drizzle with tahini dressing. Sprinkle with seeds and fresh herbs if desired. Serve immediately.