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 smoked paprika, cumin, coriander, salt, and pepper. Spread on one side of the prepared baking sheet.
03 - Pat the chickpeas thoroughly dry with paper towels. Toss with the remaining olive oil, smoked paprika, cumin, coriander, salt, and pepper. Spread on the other side of the baking sheet.
04 - Roast for 25 to 30 minutes, stirring halfway through cooking, until the sweet potatoes are tender and the chickpeas are golden and crispy.
05 - While the vegetables roast, whisk together all tahini dressing ingredients in a small bowl. Add water as needed to achieve a smooth, pourable consistency.
06 - Divide the greens among 4 bowls. Top each portion with roasted sweet potatoes, chickpeas, red onion, and sliced avocado.
07 - Drizzle each bowl with tahini dressing. Sprinkle with seeds and fresh herbs if desired. Serve immediately.