In a bowl, mix together greek yogurt, 3 chopped cloves garlic, lemon juice and zest, salt and pepper.
Place chicken into gallon size plastic food storage bag or large plastic container. Pour marinade over chicken pieces, close bag or cover container with plastic wrap, and refrigerate overnight (or minimum of 1 hour).
If using dried chickpeas, cook them according to directions here: https://www.themediterraneandish.com/how-to-cook-chickpeas/.
Preheat the oven to 425°F and line a large baking sheet with parchment paper. Drain and rinse the cooked chickpeas, then place half of them (about 8 ounces) on a towel and pat them dry. If skins fall off, discard them. Transfer the dried chickpeas to the baking sheet and toss them with a cinnamon, cumin, ginger, garlic, salt, and a generous drizzle of olive oil.
Line another baking sheet. Toss the cubed squash with olive oil, salt and pepper, then spread into the pan.
Roast the chickpeas for 20 to 30 minutes, or until golden brown and crisp. (Keep roasting until crispy enough for you). Roast the squash for 12-15 minutes, until tender and browned.
When ready to cook the chicken, preheat oven to 305°F.
Pull chicken out and place in roasting pan. Rub marinade evenly over entire chicken. Bake for 50-90 minutes (based on size) until done and crispy on the outside.
Heat a sauté pan over medium heat. Add olive oil, chopped onion, and 1 cloves chopped garlic. After 2 minutes, add the the other half of the chickpeas, along with 1 teaspoon each of cinnamon, cumin, dried ginger, dried garlic, and salt.
Take off the heat and add arugula, and dandelion (or other) greens to the pan and stir until slightly wilted.
Make the garden gremolata. In food processor mix broccoli, other greens, parsley, basil, pistachios, spinach, and mint, garlic, hot pepper flakes, lemon juice and zest, and olive oil.
Smear the gremolata over the plate, top with half the stewed chickpeas, olives, fresh tomatoes and cucumber. Place a quarter of the chicken on top, along with more gremolata and some crispy chickpeas.