Rinse the leeks well under running water to remove dirt. Use the green tops only.In a large skillet, heat the oil over medium heat. Add the leeks, coriander, cumin, and salt. Cook, stirring often for about 5 minutes until the leeks are soft..Add the tomatoes, canned chickpeas (well rinsed), olives and lemon zest.Reduce the heat to medium and cook, stirring occasionally for 15 minutes.Remove from heat and stir in the spinach and lemon juice.Serve over rice or quinoa and with a side salad.Top with any combination of crumbled feta, chopped cilantro, green onion tops, garlic infused olive oil, lemon zest, ground pepper.Enjoy!