- PREHEAT oven to 400°F. Line 2 large-rimmed baking sheets with parchment. 
- SPREAD chickpeas on one baking sheet and the sweet potato and onion on the other. Drizzle the chickpeas with 1 tablespoon of the olive oil and the vegetables with 2 tablespoons of the oil; toss to coat. 
- IN a small bowl, stir together the salt, paprika, cinnamon, cumin, pepper, and turmeric. Sprinkle the seasoning over the chickpeas and vegetables and toss to coat. 
- BAKE both sheets for 20 to 30 minutes, until the sweet potato cubes are tender and browned and the chickpeas are golden or slightly darker. 
- MEANWHILE, place the kale in a large bowl and drizzle with the remaining tablespoon olive oil. Massage for 1 minute to soften, then make the dressing. 
- IN a food processor, combine all dressing ingredients. Cover and process until smooth. 
- ARRANGE the chickpeas, roasted vegetables, kale, and radishes in 3 shallow serving bowls. Drizzle with the dressing and sprinkle with the hemp hearts (see tip below). 
- TIP: Toasting hemp hearts adds a nice crunch and lightly toasted flavor to your dish. To toast, place the hemp hearts in a dry skillet or pan over low heat. Shake the pan until they just start to color, then remove when they’re a light golden brown.