Season & Crisp the Chickpeas: In a mixing bowl, toss the thoroughly dried chickpeas with the olive oil and all ingredients from the Salt-Free Seasoning Blend except the black pepper. Arrange them in a single layer in the air fryer basket. Cook at 390°F (200°C) for 12–15 minutes, shaking the basket once at the halfway point, until deep golden-brown and audibly crisp.
Simmer the Quinoa: While the chickpeas are in the air fryer, combine the rinsed quinoa and no-salt-added vegetable broth in a medium saucepan. Bring to a rolling boil over medium-high heat.
Steam the Quinoa: Once boiling, immediately reduce the heat to the lowest possible setting, cover with a tight-fitting lid, and cook undisturbed for 15 minutes. Remove the saucepan from the heat and let it stand, still covered, for 5 more minutes to steam perfectly.
Whisk the Dressing: While the quinoa and chickpeas cook, prepare the dressing. In a small bowl, combine the fat-free Greek yogurt, fresh lemon juice, grated garlic, and chopped dill. Whisk until completely smooth, then season with the black pepper from the seasoning blend.
Prepare Fresh Toppings: Chop the cucumber, quarter the grape tomatoes, thinly slice the red onion, and roughly chop the mint leaves for garnish.
Assemble and Serve: Fluff the rested quinoa with a fork. Divide the warm quinoa evenly among six bowls. Top with the crispy chickpeas, cucumber, and tomatoes. Pit and slice the avocados, fanning half an avocado over each bowl. Drizzle generously with the lemon-dill dressing and finish with a sprinkle of fresh mint, red onion, and a dusting of sumac.